Highlights on the Third Week of September, 2018. Mining and Exploration News in Mexico

IMG_0970 - copia

On the image above, weakly silicified ridge on strongly argillitized volcanic rocks and minor quartz veining in clay pit in Hidalgo (Man-made produced differential erosion). Picture by Jorge Cirett.

By Jorge Cirett

During the 38th week of the year (September 17th to September 23rd, 2018), at least 24 press releases were announced by companies working in Mexico. Prize Mining, Kootenay, Silver Viper and Radius released advances in exploration. Excellon and Consolidated Zinc released news on mining. Prospero, Oceanus, Sable, Avino and Advance Gold reported news on financing. Capstone, Goldplay, Gold Resource, Excellon, Southern Silver, Endeavour and SilverCrest reported on development of its properties. Defiance Silver, and Valoro are to merge, Arian Silver is to change name whereas Kootenay and Radius reported deals on properties. ON MEXICO ISSUES, Goldcorp opened a health clinic in Zacatecas. ON EXPLORATION, in Sonora, Silver Viper started drilling on the Rubi-Esperanza claims of La Virginia project. In Chihuahua, Radius Gold is to drill the Amalia property. In Coahuila, Prize Mining initiated drilling at Manto Negro. ON MINING Excellon commented on production issues at Platosa, while Consolidated Zinc completed the first ore shipment from its Plomosas mine. ON FINANCING, Prospero Silver completed the private placement financing for CAD$356 K with Fortuna Silver. Oceanus raised $750 K. Sable entered a bought deal private placement for $2M. Avino Silver announced the pricing of US$4 M of an underwritten public offering. Advance Gold filed documents closing a financing for $255.3 K. ON RESOURCES AND DEVELOPMENT, Capstone, Goldplay, Gold Resource, Excellon, Southern Silver and Endeavour released drilling results aimed to better define or increase the resource base on their properties. SilverCrest presented an updated mineral resource estimate on its Las Chispas project. ON DEALS AND CORPORATE ISSUES, Defiance Silver and Valoro Resources signed a LOI on a merger. Kootenay optioned the Copalito property in Sinaloa. Arian Silver is to change name to Alien Metals. Pan American optioned the Amalia property in Chihuahua.

ON MEXICO ISSUES

  • GoldCorp opened a rural clinic in Mazapil, Zacatecas. With the investment of $40 M pesos GoldCorp executives opened the Unidad Médica Regional (Regional Medical Unit) in the Cedros community, within the Mazapil municipality of Zacatecas. The unit will be manned by IMSS-Prospera personnel, was presented as the most equipped rural clinic in the country, and is to provide 24 hours medical service to more than 2300 inhabitants.

ON EXPLORATION

  • Prize Mining Corp. initiated a 3,000 m diamond drilling program at its Manto Negro project in Coahuila. The program is focused on the El Granizo and Pilar Grande areas, which are 18 km apart, to test high-grade copper and silver surface oxide deposits.
  • Kootenay Silver Inc. presented encouraging rock-chip results from its recently optioned Copalito property in Sinaloa. Highlighted samples returned: 1.0 m @ 0.23 g/t Au, 104 g/t Ag, 0.13% Pb, 0.67% Zn; 1.5 m @ 0.50 g/t Au, 32 g/t Ag, 0.85% Pb, 0.40% Zn; 1.9 m @ 2.36 g/t Au, 50 g/t Ag, 0.50% Pb, 0.72% Zn; 1.5 m @ 0.45 g/t Au, 122 g/t Ag; 1.5 m @ 0.11 g/t Au, 1,700 g/t Ag, 0.26% Pb, 0.07% Zn; 1.0 m @ 0.40 g/t Au, 1,030 g/t Ag, 0.08% Pb, 0.10% Zn on La Chiva vein, 2.0 m @ 0.02 g/t Au, 474 g/t Ag, 0.26% Pb, 0.87% Zn; 1.10 m @ 0.15 g/t Au, 309 g/t Ag; 0.11% Pb on the Agua vein and 1.0 m @ 1.23 g/t Au, 1,155 g/t Ag; 0.96% Pb, 1.68% Zn; 1.0 m @ 1.82 g/t Au, 396 g/t Ag, 0.70% Pb, 1.17% Zn; 1.9 m @ 0.04 g/t Au, 301 g/t Ag; 0.04% Pb, 0.06% Zn on the 5 Señores vein.
  • Radius Gold Inc. announced the arrival of two drill rigs and commencement of drilling at its Amalia property in Chihuahua. “The drill program is operated by Radius and funded by Pan American Silver, under a joint venture agreement”. The targets to be tested are Campamento, Guadalupe and Dulces. The three comprise a continuum from high level to deeper epithermal mineralization in rough terrain, with stockwork zones, structurally controlled breccias and veins with both bulk mining and high-grade targets.
  • Silver Viper Minerals Corp. announced the completion of a drill camp and the initiation of drilling at the La Virginia project in eastern Sonora. Phase I drilling will be concentrated on the Rubi-Esperanza group of claims, with a combination of confirmation drilling (25%) over known mineralized trends and exploration drilling (75%) on untested targets. “Confirmation holes are planned in and around the historic La Virginia and Con Virginia workings and seek to confirm previously reported widths and grades of the main mineralized trend. These holes are designed to complement existing data, testing gaps in the previous work and testing the main trends for continuity and grade. Exploration holes are planned for nearby prospect areas: La Colonia, La Cascada and El Rubi. Additional prospects may be tested during Phase I as the campaign progresses”.

ON MINING

  • Excellon Resources Inc. anticipates “production in the quarter to be approximately 300,000 AgEq ounces due to operational issues related to surveying and planning personnel and lower byproduct prices. The operational issues have now been addressed and the operation is getting back on track”.
  • Consolidated Zinc Ltd. completed the first shipment of ore from its Plomosas mine in Chihuahua. “The Company plans to deliver 100 tonnes per day to the Santa Eulalia concentrator for the rest of this month for processing. Thereafter the Plomosas mine will scale up operations in order to deliver feed to the concentrator at or above 10,000 tonnes per month within nine months”.

ON FINANCING

  • Prospero Silver Corp. completed its recently announced private placement financing with Fortuna Silver Mines Inc., raising aggregate gross proceeds of CAD$356 K to test Prospero’s Bermudez project in Chihuahua.
  • Oceanus Resources Corp. closed a non-brokered private placement, raising $750K (El Tigre, Sonora).
  • Sable Resources Ltd. entered into an agreement with Haywood Securities Inc. in a bought deal private placement for total gross proceeds of $2 M (Margarita, Chihuahua).
  • Avino Silver & Gold Mines Ltd. announced the pricing of 6.2 M common shares and an equal amount of warrants at US$0.65 per share and associated warrant at US$0.80. The shares amount to US$4 M of underwritten public offering (Avino, Durango).
  • Advance Gold Corp. filed documents on the TSX to close its previously announced private placement financing for gross proceeds of $255.3 K. The financing was effected with two insiders of the company (Tabasqueña, Zacatecas).

ON RESOURCES AND DEVELOPMENT

  • Capstone Mining Corp. disclosed high-grade results from step-out drilling at its Cozamin mine in Zacatecas, which are to be included in a re-estimation of mineral resources later this year. Since the last estimation on March 2018, Capstone has drilled 46 additional holes, with drill intercepts underpinning the decision to elaborate the new resource estimation. Selected true width intercepts comprise 15.4 m @ 3.88% Cu, 0.12% Zn, 0.01% Pb, 63 g/t Ag, 0.02 g/t Au; 8.0 m @ 2.08% Cu, 0.07% Zn, 0.01% Pb, 70 g/t Ag, 0.15 g/t Au; 17.1 m @ 2.19% Cu, 0.07% Zn, 0.01% Pb, 39 g/t Ag, 0.01 g/t Au; 14.8 m @ 5.34% Cu, 0.8% Zn, 0.03% Pb, 112 g/t Ag, 0.05 g/t Au; 9.7 m @ 2.26% Cu, 0.07% Zn, 0.01% Pb, 29 g/t Ag.
  • Goldplay Exploration Ltd. released additional results from sampling historical core drill holes (2010) from its San Marcial project in southern Sinaloa. “The new results expand known mineralization 200 meters down dip beyond the historic NI 43-101 resource area…” and delineate a new discovery subparallel to the main zone. Highlighted true width intervals comprise 4.0 m @ 63 g/t Ag, 1.0% Pb, 1.3% Zn, 0.07 g/t Au; 9.0 m @ 73 g/t Ag, 0.09% Pb, 0.2% Zn, 0.07 g/t Au; 3.0 m @ 139 g/t Ag, 0.03% Pb, 0.15% Zn, 0.04 g/t Au (including 1.0 m @ 501 g/t Ag, 0.09% Pb, 0.4% Zn, 0.08 g/t Au); 2.0 m @ 120 g/t Ag, 0.2% Pb, 0.7% Zn, 0.1 g/t Au; 16.0 m @ 57 g/t Ag, 0.1% Pb, 0.4% Zn, 0.04 g/t Au. The new mineralization style discovered is comprised of pervasive stockwork of millimetric veins hosted by a silicified epiclastic volcanic sequence, with a core length of 47 m showing grades from 0.2 to 1.1 g/t Au.
  • Gold Resource Corp. presented drill highlights from its Alta Gracia 2018 drill program in Oaxaca. The Alta Gracia project hosts the Mirador mine, located 16 km NW from the company’s Aguila project and mineral processing plant. Core length highlighted intervals on the Independencia and Victoria veins comprise 10.30 m @ 0.85 g/t Au, 1,052 g/t Ag; 5.18 m @ 0.55 g/t Au, 241 g/t Ag; 9.59 m @ 0.36 g/t Au, 430 g/t Ag; 2.70 m @ 1.67 g/t Au, 902 g/t Ag. Gold Resource “believes it has discovered a wide, high-grade silver ore shoot within the Independencia vein”, which is located 500 m SW along strike from its Mirador Mine.
  • Excellon Resources Inc. informed on expansion, infill and definition drill results from the 623 Manto and Rodilla manto areas on its Platosa mine in Durango. Highlighted core length intervals comprise 10.5 m @ 0.1 g/t Au, 397 g/t Ag, 2.6% Pb, 4.1% Zn; 4.7 m @ 0.1 g/t Au, 266 g/t Ag, 2.6% Pb, 2.5% Zn; 9.1 m @ 122 g/t Ag, 2.0% Pb, 0.5% Zn; 9.0 m @ 56 g/t Ag, 0.6% Pb, 1.1% Zn; 2.7 m @ 0.4 g/t Au, 783 g/t Ag, 8.2% Pb, 11.1% Zn; 3.5 m@ 489 g/t Ag, 1.5% Pb, 2.3% Zn; 5.5 m @ 2.9 g/t Au, 1,700 g/t Ag, 15.4% Pb, 21.4% Zn; 15.1 m @ 0.4 g/t Au, 1,014 g/t Ag, 10.9% Pb, 26.0% Zn; 6.5 m @ 268 g/t Ag, 4.0% Pb, 4.9% Zn. These results were not included on the previous resource estimate (Sept 7, 2018) and represent the potential for additional mineral resources.
  • Southern Silver Exploration Corp. informed additional metallurgical test work on the Skarn Front deposit from the Cerro Las Minitas Project has resulted in both the successful separation of a potential “saleable grade” copper concentrate as well as the generation of a cleaner zinc concentrate grading above 50% zinc without sacrificing zinc, lead or silver recoveries.The test work on the Skarn Front deposit recovered three concentrates: Cu-Ag; Pb-Ag and Zn-Ag (for recoveries of 67.7% Cu, 82.5% Pb, 89.5% Zn and 90.6% Ag).
  • Endeavour Silver Corp. reported high-grade infill drilling results from its Terronera property in Jalisco. Some highlighted true width intercepts: 3.9 m @ 2.6 g/t Au, 86 g/t Ag; 3.4 m @ 2.1 g/t Au, 136 g/t Ag; 3.3 m @ 0.9 g/t Au, 782 g/t Ag; 5.3 m @ 1.2 g/t Au, 783 g/t Ag; 4.2 m @ 0.7 g/t Au, 524 g/t Ag; 6.1 m @ 0.9 g/t Au, 1,297 g/t Ag; 7.7 m @ 4.8 g/t Au, 169 g/t Ag; 9.8 m @ 2.4 g/t Au, 197 g/t Ag; 3.7 m @ 4.5 g/t Au, 102 g/t Ag; 8.0 m @ 3.0 g/t Au, 85 g/t Ag; 5.6 m @ 7.1 g/t Au, 185 g/t Ag; 4.6 m @ 3.1 g/t Au, 131 g/t Ag; 8.2 m @ 3.4 g/t Au, 49 g/t Ag; 8.7 m @ 6.2 g/t Au, 90 g/t Ag; 1.8 m @ 13.2 g/t Au, 340 g/t Ag.  “Mineralization in the Terronera vein has been intersected over 1400 m long by 500 m deep, and it remains open at depth”.
  • SilverCrest Metals Inc. released an updated mineral resource estimate for its Las Chispas property in Sonora. Inferred Mineral Resources are estimated at 4.3 M tonnes grading 3.68 g/t Au, 347 g/t Ag, or 623 g/t AgEq, containing 551.8 K Oz Au, 48.3 M Oz Ag, or 86.7 M Oz AgEq, using a 150 AgEq cut-off grade and minimum true vein width of 1.5 M. “The combination of the Area 51 zone (Babicanora Vein) and adjacent Babicanora Norte Vein hosts a combined Inferred Resource of 1.6 million tonnes grading 6.97 gpt gold and 568 gpt silver, or 1,091 gpt AgEq containing 56.3 million ounces of AgEq”. Eight of the 30 veins in the district were used for the updated resource estimate. .

ON DEALS AND CORPORATE ISSUES

  • Defiance Silver Corp. and ValOro Resources Inc. entered into a letter of intent (LOI) to complete a friendly merger, on which the combined company will continue under the name of Defiance Silver Corp.. Defiance owns the San Acacio silver project in Zacatecas, whereas ValOro owns the Tepal gold-copper project in Michoacan. ValOro shareholders will receive 0.71 common shares of Defiance for each share of ValOro held.
  • Kootenay Silver Inc. recently optioned the Copalito property in Sinaloa. Kootenay can acquire 100% ownership on the concession by making staged payments over a 4 year period totaling an aggregate of US$985 K. The property consists of seven concessions totaling 3,700 hectares, with a classic low sulfidation epithermal vein system with numerous small old workings and no evidence of historic exploration drilling.
  • Arian Silver Corp. informed on a favorable vote in its annual general meeting to change the name of the company to Alien Metals Ltd. (San Celso, Zacatecas).
  • Radius Gold Inc. granted Pan American Silver Corp. the option to earn up to an initial 65% interest in the Amalia project in Chihuahua, by making staged cash payments to Radius totaling US$1.5M (US$100 K already paid) and expending US$2 M in exploration over four years. Pan American can earn an additional 10% by advancing the property to preliminary feasibility study. Initially Radius will be the project operator.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the image above, weakly silicified ridge on strongly argillitized volcanic rocks and minor quartz veining in clay pit in Hidalgo (Man-made produced differential erosion). Picture by Jorge Cirett.

Highlights on the Second Week of September, 2018. Mining and Exploration News in Mexico

Banded quartz epithermal vein

By Miguel A Heredia

During the 37th week of the year (September 10th to September 16th, 2018), at least 22 press releases were announced by companies working in Mexico, with ten informing on exploration results, six reporting on resources and developments, four communicating deals and corporate issues, and two announcing production results.  ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Sonora, Riverside and Kootenay announced exploration results from its Cecilia and La Mina projects respectively. In Chihuahua, Harvest Gold began preparations to drill test its Cerro Cascaron project and Sable Resources released drilling results from its Margarita project.  In Sinaloa, Auxico reported sampling results from its Zamora project In Durango, Gainey announced a 1st phase of exploration at its Las Margaritas project, Orex commenced fieldwork exploration on its San Luis del Cordero project, and Prospero reported drilling results from its Buenavista project. In Zacatecas, Advance Gold started a phase 2 drilling program at its Tabasquena project. In Jalisco, Evrim announced trench and soil results from its Cuale project.  ON MINING, Starcore reported Q1 2018 results from its San Martin mine in Queretaro. US Antimony announced plans to increase its production of Sb, Au and Ag in Mexico. ON FINANCING, no relevant news. ON RESOURCES AND DEVELOPMENT, In Sonora, SilverCrest and Premier Gold released drilling results from its Las Chispas and Mercedes projects respectively. Aura provided an update at its Aranzazu mine in Zacatecas. Candelaria announced a PEA for its Pinos Gold project in Zacatecas.   McEwen reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa.  ON DEALS AND CORPORATE ISSUES, Evrim and First Majestic agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. New Gold announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi). Levon announced results from its annual general meeting (Cordero project, Chihuahua). Vangold withdrew its submission to acquire the San Carlos property in Guanajuato (El Pinguico mine, Guanajuato).

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Riverside Resources Inc., completed 11 N-S lines for soil sampling which returned strong multi-elements anomalies with Au, Pb, Cu, and other key elements. These results along with previous exploration work have outlined four new target areas on its Cecilia project in Sonora. Target 1 is a 4km long by 300m wide target where previous rock sampling has found up to 2 g/t Au in silicified conglomerates , but the soil anomaly is open in both directions beyond the 4 Km and more than 800m wide. Target 2 is a NE trending Ag, Pb, Au, Zn, Sb, Hg and Cu soil anomaly over 2km long and 600m wide in rock cracks with faults and host veining displaying a series of NW striking feeder dikes. Target 3 is a 1km long by 500m wide Au-Zn with minor Ag, Cu, Pb and Bi soil anomaly associated to a N-S trending fault system intersecting Paleozoic limestones. This target is also along the border edge of a magnetic high reported in a regional government geophysics survey likely associated with Pre Cambrian granitic basement.  Target 4 contains “high-grade gold samples in soils and alteration with jasperoid, silicification, and carbonate veining of the Paleozoic limestone that gives a potential limestone hosted Au with anomalous soil assays of Zn, Pb, Ag and Mn”.
  • Kootenay Silver Inc., announced that its partner Capstone Mining Corp., has commenced an exploration program on its la Mina project in Sonora. The exploration program will consists of detailed mapping and rock chip / stream sediment sampling to generate potential drill targets.
  • Harvest Gold Corporation, reported that Evrim Resources, its JV partner and operator on its Cerro Cascaron project in Chihuahua, has mobilized an advance team to the site to start preparations to drill test the property. The drill program, expected to commence at the end of September, will consist of 3,000 m to test the Cascaron Gold targets and the Cascarita Silver targets.
  • Sable Resources, released drilling results from its Margarita project in Chihuahua. Significant intersections are from hole M-DDH-18-09 with 6.5m of 111 g/t Ag Eq, including 3.5m of 153 g/t Ag; hole M-DDH-18-11 with 11.3m of 252 g/t Ag Eq, including 1.3m of 889 g/t Ag Eq; hole M-DDH-18-12 with 12.7m of 98 g/t Ag Eq, including 1.8m of 244 g/t Ag Eq. Additionally, Sable identified a low-grade stockwork style of mineralization evident in numerous holes. The most significant results are hole M-DDH-18-03 with 44.13m of 50 g/t Ag Eq, including 6.95m of 142 g/t Ag Eq; hole M-DDH-18-07 with 7.6m of 54 g/t Ag Eq, and hole M-DDH-18-12 with 21.35m of 37 g/t Ag Eq. “With the first stage of drilling now complete we will evaluate our results and formulate a plan for stage 2 drilling targeting further extensions of Margarita and the other adjacent parallel veins”.
  • Auxico Resources Canada Inc., reported high-grade sampling results from its Zamora project in Sinaloa. Significant results are 0.80m of 4Kg Ag and 29.2 g/t Au at La Franca claim, 600m southwest of the Campanillas mine along a structure that can be followed by at least 600m along strike. Mineralization consists of breccia-stockwork veining containing galena, sphalerite and possible silver sulphosalts, malachite and chalcopyrite. Other significant results are from Aguamas area where some channel samples returned 0.65m of 6.38 g/t Au and 23 g/t Ag; 0.70m of 14.7 g/t Au and 34 g/t Ag; 0.50m of 3.55 g/t Au and 108.7 g/t Ag; and 1.60m of 6.64 g/t Au and 220 g/t Ag.
  • Gainey Capital Corp., announced a phase 1 exploration program on its Las Margaritas project in Durango. Las Margaritas is a mineralized vein system that extends at least 1.5Km along strike and averages 1-2m in width. The 1st phase exploration program will consists of detailed mapping and sampling with the objective to identify prospective areas to generate the best drill targets.
  • Orex Minerals Inc., commenced an exploration program on its San Luis del Cordero project in Durango, where the company has an option to acquire 100% interest in the property from Exploraciones del Altiplano S.A. de C.V. Mineralization at San Luis del Cordero is characterized by skarn and epithermal vein Ag-Cu-Zn as a result of Tertiary-quartz-feldspar-porphyry intrusions affecting Jurassic and Cretaceous limestones, calcareous sandstones and shales. The project has seen several phases of exploration from different mining companies, including 16,400m drilled in 62 holes in the period 2000-2016. The property contains indicated resources of 662.6K tonnes of 121 g/t Ag, 0.78 % Cu and 1.1 % Zn for a total of 5.1M Oz Ag Eq, and inferred resources of 2, 785,300 tonnes of 144 g/t Ag, 0.75 % Cu and 1.45 % Zn, for a total of 24.4 M Oz Ag Eq.
  • Prospero Silver Corp., reported core drilling results from eleven holes totaling 2, 811m drilled at its Buenavista project in Durango. Mineralization drilled-tested at Buenavista consists of structurally controlled epithermal veins centered on a rhyolite dome complex. “All holes cut anomalous silver mineralization, with a best interval of 1.6m @ 353g/t Ag from 185.6m downhole, within a broader interval of 49m @ 43g/t Ag in hole BVF-18-05”.
  • Advance Gold Corp., started a second phase drilling program at its Tabasquena project in Zacatecas to test the La Tabasquena epithermal vein at a depth of 1,800m. Phase 2 will test below the gold discovery hole of phase 1. It also will test some of the potential feeder type targets and all of the veins below the oxide zone which goes down to an estimated 175 metres below surface.
  • Evrim Resources Corp., announced new trench and soil results from its Cuale project in Jalisco. Highlight results include the trench 2 which was extended from 29.4m to 184.1m with an average grade of 0.85 g/t Au, including 59.1m of 1.79 g/t Au, and including 21.6m of 4.18 g/t Au; Trench 4 , extended from 106.2m to 156.2m with an average grade of 9.57 g/t Au, including 64.6m of 20.85 g/t Au, and including 7.5m of 163.31 g/t Au; and Trench 5 which contains 174m of 0.62 g/t Au, including 70m of 1.16 g/t Au, and including 40m of 1.45 g/t Au. A soil grid with 200 metre spacing outlined a Au anomaly over the entire La Gloria prospect with grades >0.01 g/t Au of 2,300m by 800m with a central corridor of 1,700m by 300m >0.1 g/t Au extending north of the trenched area.  “The soil anomaly at higher elevation correlates with elevated silver, antimony, molybdenum, arsenic and low contents of manganese and zinc.  At lower elevations gold correlates with elevated copper, tellurium, arsenic, bismuth and iron”. “The new trench results expand the La Gloria zone to the northwest and the east with consistent gold mineralization.  Soil sampling indicates the La Gloria system footprint is measurably larger with the potential to host a significant deposit and/or additional mineralized centers within the La Gloria prospect”.   “The soil survey has a distinctive high sulphidation signature centred on a large gold in soil anomaly that is approximately 2,300 metres by 800 metres.  The results indicate a potential major system with significant upside for additional mineralized centers within the La Gloria prospect.”

ON MINING

  • Starcore International Mines Ltd., reported Q21 2018 results from its San Martin mine in Queretaro. Starcore milled 77,400 tonnes of 1.53 g/t Au and 49 g/t Ag to produce 3.3K Oz Au and 72.7K Oz Ag, with an all-in sustaining cost of US$ 1,215 for Eq Oz. Metallurgical recoveries were 88.1% for Au and 59.6% for Ag.
  • US Antimony Corporation, produced 131,184 Lb Sb and 1,244 short tonnes of zeolites in August 2018 and announced plans to increase its production of Sb, Au and Ag in Mexico. At its Wadley mine in San Luis Potosi, the general level will be reactivated by cleaning up the waste to provide access and transportation of the lower grade for the mill. At Sierra Guadalupe in Zacatecas, the Santa Monica drift will be restarted. The ore is primarily sulphides and can be upgraded to 60-70% Sb flotation concentrate at its Puerto Blanco Mill to make antimony tri-sulphide. At the Soyatal district in Queretaro, a buying program will be started to purchase direct shipping ore for its Madero smelter. The construction of the cyanide leach plant for the Los Juarez Au-Ag-Sb should allow pilot testing to commence during Q4 2018. The company also closed an agreement purchase, dismantle and transport an antimony plant from Reynosa, Tamaulipas. When installed, the equipment from the Reynosa plant will increase the capacity of the Madero Smelter in Coahuila to approximately 30,000,000 Lb per year of antimony oxide.

ON FINANCING

  • No relevant news.

 

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc., released drilling results from its Las Chispas project in Sonora and expanded the high grade at Babicanora Norte vein. Drill holes have intersected additional high-grade Ag-Au mineralization at Babicanora Norte vein which is located about 300m NE of Babicanora vein and apparently is connected with the Granaditas area which contains multiple veins to the southeast. The most significant results are 1.8 m of 15.11 g/t Au and 1,718 g/t Ag or 2,851 g/t Ag Eq, 1.6 m of 8.96 g/t Au and 1,078 g/t Ag or 1,750 g/t Ag Eq and 1.5 m of 4.22 g/t Au and 687 g/t Ag or 1 Kg Ag Eq. The drilling results of Babicanora Norte vein will be part of the upcoming updated resource which will include 8 of the 30 identified veins in the district.
  • Premier Gold Mines Limited, reported drilling results from the Rey de Oro deposit at its Mercedes mine in Sonora. Highlights results include hole UG-R018-013 which returned 12.64 g/t Au and 240.1 g/t Ag across 29.65 m (TW of 13.5 m), hole UG-R018-015 with 0.41 g/t Au and 3120.0 g/t Ag (91.0 oz/ton) across 1.52 m (TW of 1.06 m), and hole UG-R018-012 with 17.00 g/t Au and 321.0 g/t Ag across 1.1 m (TW of 0.8 m) and 4.47 g/t Au and 138.5 g/t Ag across 8.25 m (TW of 6.1 m). “Underground drilling at Rey de Oro consists of step-out and delineation drilling of this recently developed horizon. This drilling continues to intersect some of the widest vein intercepts on the property and demonstrate the potential to continue to extend the mine life at Mercedes”.
  • Aura Minerals Inc., provided an update at its Aranzazu mine in Zacatecas. Aura has obtained all the necessary permits and initiated the construction of the new tailings disposal system. “The Company expects the Aranzazu mine to achieve commercial production later this year and to achieve the average processing of 2,600 tonnes per day shortly thereafter”.
  • Candelaria Mining Corp., announced a PEA for its Pinos Gold project in Zacatecas. Highlight results from the PEA indicate an after tax net present value (NPV) of US$ 12M using a 5% discount rate, an after tax internal rate return (IRR) of 25%, and a 7 years life of mine with projected gold equivalent ounce (“GEO”) production of 89,000. The PEA includes a mineral resource estimate as of September 13, 2018. Measured resources (Dump) are 85,847 tonnes of 1.6 g/t Au and 83 g/t Ag for a total of 4,444 Oz Au and 229K Oz Ag. Indicated resources are 175,697 tonnes of 3.6 g/t Au and 47 g/t Ag for a total of 20.6K Oz Au and 268K Oz Ag. Inferred resources are 529,267 tonnes of 3.6 g/t Au and 48 g/t Ag for a total of 60.7K Oz Au and 811K Oz Ag. Average recovery for Au and Ag are 90 and 80% respectively. The company plans to have an annual production of 12,700 GEO with an overall average direct cash cost of %US 666 per GEO.
  • McEwen Mining Inc., reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa, combining mineralized sources from five locations that will be developed in two distinct process plant construction phases. McEwen plans to produce 47K Oz Au Eq per year.
  • Bacanora Lithium plc., announced plans to start the mine construction on its Sonora Lithium project in Sonora. $US 420M will be invested in the first phase and is expected to begin to operate in 2020.

ON DEALS AND CORPORATE ISSUES

  • Evrim Resources Corp., and First Majestic Silver Corp., agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. First Majestic has completed its 100% earn-in for both projects. First Majestic has paid $1.5M in cash to Evrim and has granted a 2% NSR in the case of Ermitaño project and 1.5% NSR in the case of Cumobabi project.
  • New Gold Inc., announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi).
  • Levon Resources Ltd., released results from its annual general meeting (Cordero project, Chihuahua).
  • Vangold Mining Corp., withdrew its submission to the TSX Venture Exchange to acquire the San Carlos property in Guanajuato.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, a banded quartz vein in an intermediate sulphidation epithermal project in Zacatecas, Mexico.  Photo by Miguel A Heredia.

Highlights on the First Week of September, 2018. Mining and Exploration News in Mexico

IMG_0964 - copia - copia

By Jorge Cirett

During the 36th week of the year (September 3rd to September 9th, 2018), at least 18 press releases were announced by companies working in Mexico. Prize Mining, Minaurum, Azure, and Kootenay released advances in exploration. Telson Mining released some clarifications to its operating Q2 2018 results. Prospero reported news on financing. Goldplay, Consolidated Zinc, Torex, Southern Silver, Impact Silver, Magellan Gold, and Aura Minerals reported on development of its properties. Golden Minerals, Sonoro and GoGold reported deals on properties or royalties. ON MEXICO ISSUES, AMLO announced cabinet posts in Economy, including the new Sub-secretary of Mining, Francisco Quiroga. The Mexican Core Shack now counts with displays from three properties in Chihuahua, two in Durango, two in Estado de Mexico, one in Guerrero and one in Puebla. ON EXPLORATION, In Sonora, Minaurum has resumed drilling at its Alamos Silver property. Azure reported high-grade surface results from its Oso Negro property and Kootenay released surface sampling results from its Malé project. In Coahuila Prize Mining announced a coming drill campaign on its Manto Negro project.  ON MINING Telson Mining presented some clarifications on its Q2 report, and some figures on production costs from the Campo Morado mine.  ON FINANCING, Prospero Silver announced a strategic investment by Fortuna Silver for US$270 K. ON RESOURCES AND DEVELOPMENT, Goldplay released results from its San Marcial project in Sinaloa. Consolidated Zinc is to start mining in Plomosas, Chihuahua. Torex presented an updated technical report and a new mine plan on its El Limon-Guajes property in Guerrero. Southern Silver presented assay results from drilling at its Cerro Las Minitas property in Durango. Impact Silver announced the discovery of a new ore shoot on its Zacualpan property in Estado de Mexico. Magellan is planning to mine on its El Dorado property in Nayarit. Aura Minerals filed a FS and technical report on the restarting of its Aranzazu mine in Zacatecas. ON DEALS AND CORPORATE ISSUES, Golden Minerals sold its remaining interest on the Celaya property in Guanajuato to The Electrum Group for US$3 M. Sonoro optioned an inner concession within its Cerro Caliche property for US$100 K in two payments. GoGold sold its 2% NSR on the Santa Gertrudis project in Sonora to Metalla Royalty.

ON MEXICO ISSUES

  • Andres Manuel Lopez Obrador (AMLO), the president elect in Mexico, announced cabinet posts within the Secretaría de Economía (Bureau of Economy) for its incoming government. Graciela Márquez, as Secretary, is to be supported by Luz Maria de la Mora in Subsecretaría de Comercio Exterior (Foreign Commerce), Ernesto Acevedo Hernández in Subsecretaria de Industria y Comercio (Industry and Commerce), and Francisco Quiroga, on charge of the Subsecretaría de Minería (Mining). Francisco Quiroga was director of International Planning for Grupo Villacero, and worked for a couple of years at Arcelor Mittal México. He has master degrees from Yale and New Zealand, with expertise in international metal markets, steel, commodities and mining, as well as anti-dumping practices and industry. The Mexican Core Shack added images of drill core from Almaden’s Ixtaca project in Puebla, at https://gambusinoprospector.com/mexican-core-shack/puebla/ixtaca/ . The Mexican Core Shack now displays three properties in Chihuahua, two in Durango, two in Estado de Mexico, one in Guerrero and one in Puebla.

ON EXPLORATION

  • Prize Mining Corp. commenced the phase II exploration program on its Manto Negro project in Coahuila. This phase will consist of 3,000 m of diamond drilling, “3D modeling of drill intersections and artisanal underground workings”, a GIS compilation and preliminary metallurgical test work. At El Granizo, “strong copper mineralization is exposed on surface for a strike length of 550 metres and dips moderately to the southwest. Mineralization is hosted in the San Marcos red-bed sandstone close to the contact with the overlying Cupido limestone”. At Pilar Grande drilling will test a 200 by 50 m area containing the underground workings.
  • Minaurum Gold Inc. has resumed drilling at the Alamos Silver project in Sonora. The 5,000 m (or greater) drill program is to focus in seven untested veins exposed at high structural levels in down-dropped blocks outside of the historic mining corridor. “One hole will test the Minas Nuevas vein at depth and a second hole will test the Púlpito and Cotera vein zone projections. Eight more holes are planned on targets on the completely virgin eastern side of the historic La Quintera – Promontorio vein zone, including the Tigre, Ana, and Amalia vein zones, and the breccia body located south of Amalia and Tigre; as well as the Promontorio Sur vein zone to the south of Promontorio vein. The drill program will be expanded as new targets are generated.”
  • Azure Minerals Ltd. reported high grade assays from surface sampling at its Oso Negro property in Sonora. The project comprises a 1,119 ha concession application and an adjoining 156 ha concession purchased for US$35 K. Both concessions contain epithermal mineralization like quartz veins and quartz stockworks in zones of strong alteration, with galena and sphalerite within the quartz veins, which can attain widths of up to 5 m and lengths of 800 m. Of 88 samples collected, 37 returned over 100 g/t Ag, including 9 samples over 1,000 g/t Ag, and a peak of 2,680 g/t Ag. Of 88 samples collected, 37 samples returned over 1.0 g/t Au, including 7 samples over 5.0 g/t Au and up to 100.5 g/t Au.
  • Kootenay Silver Inc. released additional high-grade sampling results on its Malé project in Sonora. Thirty three sample collected from old pits and small trenches returned 19 samples with values over 1.0 g/t Au, with the highest running 12.1, 17.0, 24.7 and 36.0 g/t Au. “The Malé gold project is a granitic-hosted gold dominant polymetallic vein and vein stockwork system covering an area of 1500 x 1500 meters with numerous showings highly anomalous in gold…..Mineralization occurs as narrow veins, veinlets and stockworks of quartz with or without sulphides within structures projecting in a dominant northeast trend and a secondary northwest trend”.

ON MINING

  • Telson Mining Corp. presented some clarifications to its Q2 2018 financial report (please see press release for details). The “Campo Morado Mine has achieved direct site costs for mining, milling and administration during Q2 of approximately US$56.6, US$51.6 and US$51.8 per tonne respectively for, April, May and June. These current direct site costs are approximately 36% lower than the estimated direct site costs of US$72.26 per tonne used for the same categories in Telson’s recently published independent Preliminary Economic Assessment and approximately 40% lower than the previous operator’s last year of production during 2014”.

ON FINANCING

  • Prospero Silver Corp. arranged a US$270 K strategic investment from Fortuna Silver Mines Inc. Fortuna currently owns 20.3% of Prospero current and outstanding shares, and this private placement is to take that proportion to 26.9%. The proceeds will be allocated to test the Bermudez project in Chihuahua with a 3-hole 1,500 m drill program.

ON RESOURCES AND DEVELOPMENT

  • Goldplay Exploration Ltd. disclosed additional results from sampling of the historical core drill holes completed in 2011 on the project San Marcial, in Sinaloa. Highlighted true width (TW) new results from two holes comprise 53.6 m @ 57 g/t Ag, 0.1% Pb, 0.4% Zn (including 5.6 m @ 253 g/t Ag, 0.2% Pb, 0.6% Zn); 46.5 m @ 57 g/t Ag, 0.3% Pb, 0.4% Zn (including 15.5 m @ 115 g/t Ag, 0.5% Pb, 0.7% Zn, same that include 3.25 m @ 411 g/t Ag, 1.9% Pb, 2.2% Zn).
  • Consolidated Zinc Ltd. is to start mining at its Plomosas project in Chihuahua. “The CZL Board has approved the development plan and mining will commence immediately with monthly receipts commencing mid October 2018”. CZL secured a finance package by way of convertible notes. The mined ore will be processed at Grupo Mexico’s plant in Santa Eulalia, Chihuahua, and the concentrate is to be sent to the same group’s smelter in San Luis Potosi. CZL “is confident that the first cashflow can be achieved for a capital cost less than US$500,000 and the C1 operating costs are expected to be less than US$0.50/lb Zinc after by-product credits”.
  • Torex Gold Resources Inc. completed an updated technical report that includes a life of mine plan (LOM) of nine years and an increased average gold production of 430 K Oz Au per year, from 2019 to 2023 at its Limón-Guajes mine in Guerrero.” The TR also contains an updated Media Luna Preliminary Economic Assessment (PEA), with an after-tax NPV (5%) of $582M, and an after-tax IRR of 27%”.  El Limon Guajes updated TR, Sept 20181
  • Southern Silver Exploration Corp. reported assay results from initial core drilling on the 12,000 m 2018 drill program at its Cerro Las Minitas property in Durango. Highlighted true width (TW) intervals comprise 15.1 m @ 280 g/t Ag, 0.18% Cu, 0.9% Pb, 0.1% Zn (including 4.4 m @ 598 g/t Ag, 0.4% Cu, 2.1% Pb, 0.1% Zn) on the Skarn Front deposit, and 0.6 m @ 79 g/t Ag, 0.4 g/t Au, 1.2% Cu, 0.1% Pb, 14.1% Zn; 2.0 m @ 88 g/t Ag, 0.3 g/t Au, 0.2% Cu, 1.1% Pb, 2.6% Zn in Las Victorias zone, which extend mineralization for over 100 m to the southeast.
  • Impact Silver Corp. announced the discovery of a new ore shoot on the Lipton vein of the Guadalupe mine at its Zacualpan property in Estado de Mexico. To date the new zone has been drilled over a length of 120 m and vertical distance of 80 m, remaining open in all directions. Some of the highlighted true width intervals comprise 10.57 m @ 201 g/t Ag, 0.13 g/t Au, 0.2% Pb, 0.5% Zn (including 4.18 m @ 381 g/t Au, 0.09 g/t Au, 0.4% Pb, 1.1% Zn); 7.74 m @ 466 g/t Ag, 0.13 g/t Au, 0.5% Pb, 1.1% Zn; 8.82 m @ 306 g/t Ag, 0.11 g/t Au, 0.2% Pb, 0.5% Zn; 1.53 m @ 240 g/t Ag, 0.04 g/t Au, 0.7% Pb, 2.5% Zn; 2.87 m @ 308 g/t Au, 0.19 g/t Au, 0.3% Pb, 0.4% Zn.
  • Magellan Gold Corp. is focused on advancing El Dorado project in Nayarit towards production, planning to truck the ore to the SDA mill for processing. “The drilled resource appears to be sufficient to support an underground mining operation for five years at a mining rate of 100 tonnes per day….”. Magellan is applying for the necessary environmental and blasting permits, as well as quotes for contract mining.
  • Aura Minerals Inc. filed the NI-43-101 Feasibility Study and Technical Report on the Aranzazu mine in Zacatecas.

ON DEALS AND CORPORATE ISSUES

  • Golden Minerals Co. has sold its remaining interest on the Celaya property in Guanajuato, to The Electrum Group LLC. Golden Minerals is to receive a payment of US$3.0 M for selling 100% of its remaining mining concessions and related interests in the Celaya project located in Guanajuato.
  • Sonoro Metals Corp. optioned from a private owner the 9 ha “El Colorado” mining concession, within its Cerro Caliche project in Sonora. “The Option Agreement provides for Sonoro to acquire a 100% interest in El Colorado for total consideration to the Vendor of US$100,000, of which US$50,000 has been paid and the balance due in 6 months”. Seven thorough-going veins surrounded by quartz sotckwork areas and sheeted quartz veinlet zones present limited mining evidenced by tunnels, pits and trenches.
  • Metalla Royalty & Streaming Ltd. entered with GoGold Resources Inc. into an agreement to purchase a 2% net smelter return royalty on the Santa Gertrudis property in Sonora, for US$12 M in cash. The agreement is subject to a right of first refusal held by the owner of the project, Agnico Eagle Mines Ltd., right that has to be exercised with 45 days.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the image above, argillitized volcanic rocks above the famous Vizcaína vein in the Pachuca District, Hidalgo. Picture by Jorge Cirett.

Highlights on the Fifth Week of August, 2018. Mining and Exploration News in Mexico

rhythmically banded quartz vein

By Miguel A Heredia

During the 35th week of the year (August 27th to September 2nd, 2018), at least 18 press releases were announced by companies working in Mexico, with seven informing on exploration results, five announcing financing issues, four communicating deals and corporate issues, one reporting production results, and one reporting on resources and developments.  ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Sonora, Azure reported that project operator Teck Resources commenced its second drilling campaign on the El Alacrán project; Minaurum acquired two additional mineral concessions at its Alamos Silver project and discovered three new veins; Ridgestone commenced a 1,400m drilling program at its Rebeico project; and Riverside provided an exploration update of its Mexican projects portfolio.  In Chihuahua, Harvest approved the budget to drill its Cerro Cascaron project, and Radius mobilized a drill team to explore its Amalia project. In Sinaloa, Goldplay reported historical core sampling results from its San Marcial project.  ON MINING, Santacruz reported Q2 2018 results from their Veta Grande project in Zacatecas and the El Rosario project in San Luis Potosi. ON FINANCING, Evrim closed a private placement for $7,272,601.50. Prize closed the first tranche of a private placement for $1,530.000. Vangold announced a non-brokered private placement for up to $500,000. Sable launched an early warrant exercise incentive program to exercise warrants exercisable for common shares. ON RESOURCES AND DEVELOPMENT, Endeavour updated mineral reserves and resource estimates and a PFS on its Terronera project in Jalisco. ON DEALS AND CORPORATE ISSUES, Silver Viper terminated its option agreement on the Clemente project in Sonora with Riverside. Ethos Gold entered into an option agreement to acquire a contiguous claim to its la Purisima project in Chihuahua. Santacruz amended the Contracuña option and a short-term loan agreement. Endeavour announced an initiative to reduce capital and operating costs.

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Azure Minerals Limited, announced that Teck Resources commenced its second drilling campaign on the El Alacrán project in Sonora. Two diamond drill rigs have been mobilized to carry out a 5,000m program with the objective to test high priority drill targets including Cerro Alacrán (porphyry Cu target) and Cerro Simon (epithermal Au-Ag target).
  • Minaurum Gold Inc., acquired the 10,159 Ha La Quintera claim and the 400 Ha Yoreme claim to expand its land package to 16,134 Ha at its Alamos Silver project in Sonora. Three new veins have been discovered on the Yoreme concession measuring between 900m to 1,800m long. Vein sampling returned from anomalous up to 250 g/t Ag, 1.29% Cu, 4.74% Pb, and 1.99% Zn. “With the newly found Yoreme veins, we have outlined a vein swarm of 12 prominent and separate veins within an overall corridor measuring 10 km long and 2.7 km wide at Alamos.” stated Darrell Rader, President and CEO of Minaurum. “The new claims not only triple the size of our holdings but also ensure that we control the strike of all known veins, greatly expanding the impressive untested exploration potential at Alamos.”
  • Ridgestone Mining Inc., commenced a 1,400m diamond drill program at its Rebeico Au-Cu project in Sonora. The drilling program has the aim to test for Au-Cu mineralization below historical workings along the Alaska vein which has a strike length of over 1km and is open at depth.
  • Riverside Resources Inc., provided an exploration update of its projects portfolio. At its Cecilia project in Sonora, the company is conducting a soil survey sampling covering the larger surrounding concession acquired through the Mexican lottery system last year. Riverside also announced that Silver Viper Minerals Corp terminated its option on the Clemente project in Sonora and is currently compiling all the new information. It is also refining targets on its three copper assets in Sonora: Thor, Ariel and El Teco.
  • Harvest Gold Corporation, approved the drill program budget submitted by Evrim Resources Corp., for the diamond drill program at its Cerro Cascaron project in Chihuahua. The drill program will consists of 3,000m in 15 holes to cover seven target areas and is expected to initiate in late September.
  • Radius Gold Inc., mobilized a drill team to explore its Amalia project in Chihuahua. The 2,000m drill program will be conducted by Pan American Silver and is expected to commence in September on multiple drill targets, including Campamento target, a 500m by 70m zone of intense silicification and brecciation with massive and stockwork veining; Guadalupe target, a high-grade andesite hosted structurally controlled breccia zone, and Dulces target, a poorly exposed vein within an extensive area of argillic altered andesite volcanics and related Au in soil anomaly.
  • Goldplay Exploration Ltd., reported sampling results of the historical core from its San Marcial project in Sinaloa and confirms open pit target near surface with 46m of 129 g/t Ag Eq, including 7.5m of 379 g/t Ag Eq, and 1.5m of 1,079 g/t Ag Eq.

ON MINING

  • Santacruz Silver Mining Ltd., reported Q2 2018 results from its Veta Grande project in Zacatecas and the El Rosario project in San Luis Potosi. 52,025 tones were processed during Q2 2018 to produce 52K Oz Ag at a production cost of $66.12 per tonne.

ON FINANCING

  • Evrim Resources Corp., closed a private placement with Newmont Canada Corporation for $7,272,601.50. Proceeds from the private placement will provide funding for the Cuale high sulphidation epithermal gold project in Jalisco, Mexico and for general corporate purposes.
  • Prize Mining Corporation, closed the first tranche of a brokered private placement for $1,530,000. Net proceeds will be used on its Manto Negro project in Coahuila.
  • Vangold Mining Corp., announced a non-brokered private placement financing for up to $500,000. Net proceeds will be used to advance its Pinguino mine project in Guanajuato.
  • Sable Resources Ltd., launched an early warrant exercise incentive program to encourage the early exercise of up to 27,205,500 of its outstanding unlisted warrants exercisable for common shares at a price of $0.25.

 

ON RESOURCES AND DEVELOPMENT

  • Endeavour Silver Corp., updated mineral reserves and resource estimates and a PFS on its Terronera project in Jalisco. Indicated resources are 4,363,000 tonnes of 239 g/t Ag and 2.53 g/t Au for a total of 33.4M Oz Ag and 354K oz Au. Inferred resources are 1,073,000 tonnes of 252 g/t Ag and 2.38 g/t Au for a total of 8.8M Oz Ag and 82K Oz Au. Probable reserves are 4,701,000 tonnes of 226 g/t Ag and 2.28 g/t Au for a total of 33.8M Oz Ag and 342K Oz Au. The company also disclosed results of the PFS. Highlights include a mine life of 9.5 years with average annual production of 5.1M Oz Ag Eq in phase 2 (year 3 and onwards); a cash cost of $0.15 per Oz Ag, net of Au by-product credits and all in sustaining cost of $1.36 per Oz Ag, net of Au by-product credits, and a robust economics including an after-tax 5% NPV of $117.8M (51% increase from 2017 PFS), an Internal Rate of Return of 23.5% and Payback period of 5.4 years.

ON DEALS AND CORPORATE ISSUES

  • Silver Viper Minerals Corp., terminated its option agreement on the Clemente project in Sonora with Riverside Resources Inc.
  • Ethos Gold Corp., entered into an option agreement to acquire an 897 Ha contiguous claim to its la Purisima project in Chihuahua. The company can acquire the 100% interest of the property at any time during the 10 years following closing of the option agreement by paying the property owner staged payments for US$550,000 and granting a 2% NSR royalty on the property of which the company can purchase 50% at any time by paying US$ 1M.
  • Santacruz Silver Mining Ltd., amended the option agreement with the Contracuña group of companies to acquire 100% ownership of the Veta Grande mine and milling facilities as well as the Minillas project in Zacatecas. Santacruz also amended the repayment terms of the US$2.3M short-term loan it has with a private Bolivian mining company. Pursuant to the amended terms the principal balance of US$2.3 million is now to be repaid in October 1, 2018
  • Endeavour Silver Corp., announced an initiative to reduce capital and operating costs due to the drop in precious metal prices this quarter. The exploration group will cease all drilling activities and will be focused on preparing new resource estimates and planning for 2019 to resume their drilling programs. The development group working on Terronera project in Jalisco has delayed hiring for certain positions and will not commence already permitted earthworks on the roads and plant site until receipt of final government permits for the mine dumps and plant tailings. It also conducted a review of possible short-term improvements to increase revenue and decrease costs at each of their mines to year-end.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, a rhythmically banded quartz vein in a low sulphidation epithermal project in Durango, Mexico.  Photo by Miguel A Heredia.

Highlights on the Fourth Week of August, 2018. Mining and Exploration News in Mexico

naranjillo_gto 1 - copia

By Jorge Cirett

During the 34th week of the year (August 20th to August 26th, 2018), at least 17 press releases were announced by companies working in Mexico. Aztec Minerals, Discovery Metals, and SilverCrest Metals released advances in exploration. Grupo Mexico and Santacruz Silver Mining released its Q2 2018 results. SilverCrest Metals, Silver Bull, Avino Silver and Prize Mining reported news on financing. Azure Minerals reported advances on the PEA and new drilling of one of its projects. ON MEXICO ISSUES, The Mexican Core Shack now counts with displays from three properties in Chihuahua, two in Durango and two in Estado de Mexico. ON EXPLORATION, In Sonora, Aztec Minerals released results from surface sampling along drill roads on its Cervantes project. In Coahuila, Discovery Metals released results from underground sampling at its Puerto Rico project.   ON MINING Grupo Mexico and Santacruz Silver released its Q2 2018 reports. Grupo Mexico is to re-open its San Martin mine in Zacatecas.  ON FINANCING, Silver Bull and Prize Mining closed final tranches of financing for gross proceeds of US$3.79 M and $7.62 M respectively. ON RESOURCES AND DEVELOPMENT, Azure Minerals is advancing the PEA on its Oposura property in Sonora, and announcing a new drilling campaign. SilverCrest released more drilling results from its Las Chispas project in Sonora. ON DEALS AND CORPORATE ISSUES, Alio Gold announced several changes in senior management, as well as at its corporate head office in Vancouver, related to the recent focus on its operating mines.

ON MEXICO ISSUES

ON EXPLORATION

  • Aztec Minerals Corp. released surface sampling results from the California prospect within its Cervantes project in Sonora. The rock chip channel samples were collected along drill roads, returning 75 m @ 0.11 g/t Au; 222 m @ 0.47 g/t Au; 84 m @ 0.40 g/t Au; 183 m @ 0.32 g/t Au; 81 m @ 0.53 g/t Au; 33 m @ 0.26 g/t Au; 111 m @ 0.02 g/t Au. Aztec’s CAD$182 K phase 2 exploration program “of geological mapping, rock, soil and sediment sampling and airborne magnetic and radiometric surveys is focused on better defining additional drill targets” on the 3,649 hectares property. Soil surveys highlight strong gold anomalies at the California north, Purisima East, Purisima West and Jacob soil grids, with individual samples returning up to 3.3 g/t Au. The Cervantes property is held under an option to purchase agreement with Kootenay Silver Inc.
  • Discovery Metals Corp. reported the second batch of underground channel sampling results from the San Jose mine at its Puerto Rico project in Coahuila. “San Jose contains approximately 630m of underground drifts and stopes over four levels (from bottom to top: the Chuyon, Haulage, Rope and Upper levels) that span an approximate vertical extent of 50m and cover a horizontal extent of approximately 80m by 80m. All four levels host strongly mineralized mantos, chimneys and faults. Channel samples were collected at 3-5m intervals along both sides of the entire length of the developed workings”. Individual samples are as high as 1.2 m @ 10 g/t Ag, 46.2% Zn, 0.2% Pb, 0.2% Cu; 0.7 m @ 154 g/t Ag, 38.2% Zn, 0.6% Pb, 0.1% Cu; 1.0 m @ 18 g/t Ag, 30.2% Zn, 0.1% Pb, 2.6% Cu; 1.0 m @ 445 g/t Ag, 3.5% Zn, 26.3% Pb, 0.6% Cu.discoverymetals_nr-2018-08-2311

ON MINING

  • Santacruz Silver Mining Ltd. reported operating results from the Veta Grande project in Zacatecas and the Rosario project in San Luis Potosi, for the second quarter 2018. At Veta Grande, 52 K tonnes @ 70 g/t Ag, 0.17 g/t Au, 1.14% Zn, 0.41% Pb (161 g/t AgEq) were processed, with a 45% Ag recovery, to produce 36.7 K Oz Ag, 59 Oz Au, 111 tonnes Pb, 164 tonnes Zn. At Rosario, 15.4 K tonnes @ 44 g/t Ag, 0.26 g/t Au, 2.54% Zn, 0.23% Pb (212 g/t AgEq) were processed, with 89% Ag recovery, to produce 19.4 K Oz Ag, 84 Oz Au, 31 tonnes Pb, 344 tonnes Zn.
  • Grupo México is to reopen its San Martin mine in Zacatecas, with an investment of US$77 M. The mine was closed eleven years ago due to a labor dispute with the Sindicato Nacional de Trabajadores Mineros, led by Napoleon Gomez Urrutia. The mine workers have now changed to the Sindicato Nacional de Trabajadores de la Exploración, Explotación y Beneficio en Minas de la República Mexicana, ending the closure by strike of the mine. The mine is to have a 32 years life span, creating directly 600 jobs and indirectly 3,000 more.
  • Grupo México reported its second quarter 2018 results. During the period sales increased 19%, while the EBITDA rose to US$1,316 M, and capital investments rose to US$434 M.

ON FINANCING

  • SilverCrest Metals Inc. has been approved to list its common shares on the New York Stock Exchange (Las Chispas, Sonora).
  • Silver Bull Resources Inc. completed the second and final tranche of its previously announced private placement, for aggregate gross proceeds of USD$957.5 K. Under the first tranche of the private placement Silver Bull accrued USD$2.831 M (Sierra Mojada, Coahuila).
  • Avino Silver & Gold Mines Ltd- filed a shelf registration statement on Form F-3 with the Securities and Exchange Commission (SEC), that is to allow the company to raise up to US$25 M (Avino, Durango).
  • Prize Mining Corp. closed the third and final tranche of the recently announced non-brokered private placement, raising $500 K and taking the total aggregate of gross proceeds to $7.62 M (Manto Negro, Coahuila).

ON RESOURCES AND DEVELOPMENT

  • Azure Minerals Ltd. announced that the preliminary economic assessment (PEA) on its Oposura project in Sonora remains on track to be reported in the third quarter of 2018. The study envisions open pit and room and pillar underground extraction. The resource includes 2.1 Mt (tonnes) @5.3% Zn, 2.9% Pb, 17.2 g/t Ag in the indicated category and 0.8 Mt @ 4.3% Zn, 2.5% Pb, 16.5 g/t Ag in the inferred category.
  • SilverCrest Metals Inc. announced new drill results from the Granaditas vein and the new Granaditas Dos vein at its Las Chispas property in Sonora. These veins are approximately 40 m apart and may intersect to the southeast. Highlighted true width (TW) intercepts include 1.2 m @ 5.6 g/t Au, 15 g/t Ag; 1.3 m @ 4.2 g/t Au, 229 g/t Ag; 1.2 m @ 3.10 g/t Au, 4.0 g/t Ag in the Granaditas vein, 0.5 m @ 1.8 g/t Au, 149 g/t Ag; 0.4 m @ 2.4 g/t Au, 421 g/t Ag; 2.9 m @ 294 g/t Ag; 1.2 m @ 1.2 g/t Au, 162 g/t Ag in the Granaditas Dos vein and 0.9 m @ 1.0 g/t Au, 82 g/t Ag; 1.4 m @ 2.5 g/t Au, 799 g/t Ag in an unnamed vein. The high-grade footprint in the Granaditas Vein currently measures approximately 200 m long by 200 m high and is open in most directions. The high-grade footprint in the Granaditas Dos (2) Vein currently measures approximately 100 m long by 100 m high and is open in most directions.
  • Azure Minerals Ltd. recommenced drilling at its Oposura project in Sonora. This campaign is focused on infill drilling and more widely spaced resource extensional drilling.

ON DEALS AND CORPORATE ISSUES

  • Alio Gold Inc. announced changes related to the recent focus on its operating mines San Francisco in Sonora and Florida Canyon in Nevada, which include the previously announced temporary suspension of exploration and development at its Ana Paula project in Guerrero, and the here stated termination of the Vice-president of project development Project Manager and the Chief Executive Officer. “The Company has also taken steps to reduce costs at the Ana Paula project site in Mexico while maintaining a level of local employment and community engagement…..the Company has also implemented a number of changes at its corporate office in Vancouver which in total are expected to reduce the corporate overhead by approximately $1.2 million over the next 12 months.“
  • Defiance Silver Corp. renegotiated and extended the terms of its San Acacio Project option agreement. “The project vendor has agreed to postpone a substantial amount of the payments due in 2018 to September 27, 2020. As a result, Defiance will be making four quarterly payments of US$226,900 totaling US$907,600 in year one and four quarterly payments of US$250,000 totaling US$1,000,000 in year two with the final option payment due September 2020.”

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, the silicified and alunite bearing ridge beyond the farming fields is interpreted as the water table interface in a shallow epithermal system, in Guanajuato. Picture by Jorge Cirett.

Grupo México reabrirá mina en Zacatecas cerrada 11 años por conflicto laboral

http://www.elfinanciero.com.mx/empresas/grupo-mexico-reabrira-mina-en-zacatecas-cerrada-11-anos-por-conflicto-laboral

Grupo México reabrirá su mina San Martín, ubicada en Sombrerete, Zacatecas, que estuvo cerrada por 11 años debido a un conflicto laboral con el Sindicato Nacional de Trabajadores Mineros liderado por Napoleón Gómez Urrutia.

En un comunicado, los trabajadores de la mina anunciaron su cambio al Sindicato Nacional de Trabajadores de la Exploración, Explotación y Beneficio en Minas en la República Mexicana, con lo cual ponen fin al cierre por huelga. 

Con la reapertura de la mina se generarán 600 empleos directos y 3 mil indirectos.

Highlights on the Second Week of August, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 32nd week of the year (August 6th to August 12th, 2018), at least 16 press releases were announced by companies working in Mexico. Sable, Oroco, Millrock and One World Lithium updated on exploration advances. Hecla, Torex, Golden Minerals, Argonaut, Alio and Odyssey Marine Exploration released Q2 2018 reports. HarvestGold closed the final tranche of a financing round. Hecla, Alio and Consolidated Zinc reported advances on the development or exploration of their resource base. Three companies announced deals on projects, or company mergers. ON MEXICO ISSUES, The Mexican Core Shack now counts with displays from three properties in Chihuahua and two in Durango. The newly elected president of Mexico seems to have mining development as one of its 25 key projects. ON EXPLORATION, In Sonora, Millrock reported drill results from its Navidad project. In Chihuahua, Sable Resources released wide, high-grade silver intercepts from its Margarita property. In Sinaloa, Oroco received the title for a concession on the Santo Tomás district. In Baja California, One World Lithium is preparing to drill its Salar del Diablo project.   ON MINING Hecla, Torex gold, Golden Minerals, Alio Gold, Argonaut and Odyssey Mineral Exploration released Q2 2018 reports.  ON FINANCING, Harvest Gold closed the final tranche of its non-brokered private placement, accruing C$857 K in gross proceeds. ON RESOURCES AND DEVELOPMENT, Hecla, Alio Gold and Consolidated Zinc reported on actions and programs to affect their resource estimates or development to mining. ON DEALS AND CORPORATE ISSUES, Golden Reign and Marlin Gold reported on their merger agreement, Megastar closed a deal on three properties in Oaxaca and San Marco optioned the Chunibas project in Oaxaca to Antofagasta.

ON MEXICO ISSUES

  • The Mexican Core Shack added images of drill core from Hecla’s San Sebastian project in Durango, at https://gambusinoprospector.com/mexican-core-shack/durango/san-sebastian/ . The Mexican Core Shack now displays three properties in Chihuahua and two in Durango.
  • The newly elected president of Mexico, Andrés Manuel López Obrador, presented 25 priority projects for his coming tenure, one of which is mining development, on a meeting with the Colegio de Ingenieros Civiles de México (Civil Engineers Association of Mexico), the Unión Mexicana de Asociaciones de Ingenieros A.C. and the Engineering Faculty of the Universidad Autónoma de México (UNAM). Carlos Slim was among the cohort of industry leaders in the luncheon held at the Palacio de Minería (Mining Palace) in Mexico City. No details were exposed.

ON EXPLORATION

  • Sable Resources Ltd. released results from a third drill hole on the Margarita vein of its Margarita property in Chihuahua (near Sunshine’s Los Gatos property). The most recent intercept confirms vein continuity over 500 m of longitude. The vein was intercepted 40 m from surface, returning 12.4 m @ 514 g/t AgEq (with Pb and Zn credits, no details released), including 4.10 m @ 902 g/t AgEq, which includes 1.0 m @ 1,048 g/t AgEq and 1.05 m @ 1,035 g/t AgEq. Other five holes have been finished, with similar vein textures having been intersected across similar widths down to a depth of 100 m from surface.
  • Oroco Resources Corp. announced that the Papago 17 concession in Sinaloa has been granted by the government, and the company is now to register its 77.5% interest (got on a deal with a private owner) in the Mexican Public Registry of Mining. The 213 ha Papago 17 concession lies south from the Santo Tomás porphyry copper project, and contains quartz monzonite dikes and hornfelsed andesite.
  • Millrock Resources Inc. reported second phase drilling results from its Navidad project in Sonora. The program focused on targets identified by soil and rock sampling, geophysical surveys and trenching, as well as the Crossover and El Cobre prospects. In total 2,969 m in 14 holes were drilled. Highlighted core length intercepts include 3.9 m @ 1.78 g/t Au; 12.5 m @ 1.14 g/t Au; 8.0 m @ 0.46 g/t Au; 6.3 m @ 0.39 g/t Au, 3.3 m @ 3.84 g/t Au; 8.7 m @ 0.43 g/t Au, 9.0 m @ 0.39 g/t Au; 5.5 m @ 0.72 g/t Au; 8.5 m @ 0.39 g/t Au; 2.6 m @ 1.73 g/t Au; 6.3 m @ 0.43 g/t Au; 7.9 m @ 2.34 g/t Au; 6.0 m @ 0.45 g/t Au; 17.4 m @ 1.61 g/t Au; 9.2 m @ 0.71 g/t Au.
  • One World Lithium Inc. has accepted the Lithium Partnership’s final report summarizing pre-drilling programs for its Salar del Diablo project in Baja California. Eleven drill hole locations have been selected to test the three geophysical anomalies and two geochemical targets. One World intends to commence drilling on the latter part of October 2018.

ON MINING

  • Hecla Mining Co. reported second quarter 2018 results, including figures from its San Sebastian project in Durango, where 559,647 Oz Ag, 3,872 Oz Au were produced during the period. The mill operated at an average of 415 tpd (tons per day). Cash cost was $9.79 per Ag Oz and AISC $17.15 per Ag Oz, reflecting the higher cost of transitioning from open pit to underground mining. “A reduction in per ounce costs is expected in the second half of the year as underground production continues to ramp up”.
  • Torex Gold Inc. reported its financial results for the second quarter 2018. Mine production at Limon-Guajes totaled 7.15 Mt (tonnes), averaging 78,629 tpd (tonnes per day) of which 1.28 Mt was ore processed at 11,140 tpd. Mined ore averaged 2.45 g/t Au and processed ore 2.86 g/t Au, for the production of 78,796 Oz Au, with 87% Au recovery in the period and cash cost of $680 per Oz Au and AISC of $1,017 per Oz Au. Cash held at the end of the period was $117.9 M.
  • Golden Minerals Co. announced financial results for the second quarter 2018. During the quarter Golden reported final drill results from the Santa Maria project (Chihuahua) 2017-2018 drill program and announced the preparation of an updated technical report and preliminary economic assessment (PEA). In August 2018, Golden entered into a non-binding letter of intent with The Electrum Group LLC upon which Electrum is to purchase Golden’s remaining interest in the Celaya property in Guanajuato for a payment of $3 M. Cash and cash equivalents stood at $2.5 M at the end of the period.
  • Argonaut Gold Inc. released financial results for the second quarter 2018. During the period the company produced 38,441 GEOs (Gold equivalent ounces) at cash cost $704 per Oz Au and AISC of $832 per Oz Au. At El Castillo, in Durango, 2.22 Mt (tonnes) of waste, and 2.15 Mt (tonnes) were moved, with 2.12 Mt ore @ 0.37 g/t Au crushed to the pads to produce 10,079 Oz Au, 8,111 Oz Ag at cash cost $992 per Au Oz. At San Agustin in Durango, 618 Kt of waste, 1.85 Mt of ore were moved, with 1.88 Mt of ore @ 0.36 g/t Au crushed to the pads to produce 15,528 Oz Au, 55,781 Oz Ag. At La Colorada, in Sonora, 1.81 Mt of waste, 1.06 Mt of ore were moved (32 K tpd), with 1.14 Mt of ore @ 0.36 g/t Au crushed to leach pads to produce 11,503 Oz Au, 29,360 Oz Ag at cash cost $833. “The Company expects the third quarter 2018 will see lower production due to the lower grades stacked on the leach pad during the second quarter 2018 and also expects higher costs during the third quarter 2018 associated with drilling, blasting and hauling costs for normal state operations”.” While the Company’s explosives permit has been reinstated at La Colorada, the legal action brought against the Secretary of National Defense and the Municipality of La Colorada continues through the Judiciary court process”.
  • Alio Gold Inc. reported second quarter 2018 results. The San Francisco mine in Sonora produced 14,466 Oz Au, 7,661 Oz Ag at by-product cash cost $950 per Oz Au, while AISC was $1,172 per Oz Au. The Company is reducing stripping and focuses mining on more profitable ounces to maintain cash neutral operations. As a result of the reduced stripping, the ”production guidance of 90,000 to 100,000 ounces of gold for 2018 will not be met.” At Ana Paula in Guerrero, all development work including the construction of the underground decline, the completion of the feasibility study and further exploration have been temporarily suspended as result of the recent decline in the gold price.
  • Odyssey Marine Exploration Inc. reported second quarter 2018 results. “Odyssey holds a controlling interest in Oceanica Resources, S. de R.L., and ExO, a subsidiary of Oceanica. ExO controls exclusive 50-year mining permits in an area in Mexican waters that contains a large amount of phosphate mineralized material”.” On March 21, 2018, the 11-judge panel of the Superior Court of the Federal Court of Administrative Justice in Mexico ruled unanimously in favor of ExO, nullifying the original denial of the environmental permit application.“ (Don Diego, Pacific Ocean cost of Baja California Sur)

ON FINANCING

  • Harvest Gold Corp. closed a fourth and final tranche of its non-brokered private placement to raise CDN$200 K for a total of CDN$857 K gross proceeds. “The Company paid finder’s fees of 8% cash and 8% warrants to Canaccord Genuity Corp. on certain funds”. Harvest delivered $700 K to Evrim Resources Corp. to fund the Cerro Cascaron project (in Chihuahua) drill program of up to 3,000 m, beginning the third week of September.

ON RESOURCES AND DEVELOPMENT

  • Hecla Mining Co. reported on brownfield exploration on its mining units, including on the San Sebastian project in Durango, where it continues to expand high-grade polymetallic zones on the Middle and Francine veins. Additional oxide mineralization is being defined along the Professor and East Francine veins. On the Francine vein mineralization has been traced for over 360 m on surface, and over 240 at depth, but once incorporated the newly defined East Francine vein the total strike length of continuous mineralization along the Francine Vein exceeds 2,400 m and can be traced to a depth of over 600 m. Proven and probable reserves stand at 398 K tons @ 3.42 g/t Au, 432 g/t Ag, containing 43,000 Oz Au, 5.52 M Oz Ag and Measured and Indicated resources of 1.5 M tons @ 2.25 g/t Au, 186 g/t Ag, 2.9% Pb, 3.8% Zn, 1.7% Cu, containing 103,000 Oz Au, 8.8 M Oz Ag, 15,520 tons Pb, 20,350 tons Zn, 9,020 tons Cu.Hecla-Q2-2018-ExplorationUpdate1 - copia
  • Alio Gold Inc. informed on the update of mineral reserve estimates at its San Francisco mine in Sonora. “Mining depletion of Mineral Reserves was partly offset by expansion of the reserves in Phases 6 through 9 of the San Francisco Pit. Total proven and probable mineral reserves totaled 854,472 ounces of gold (55.5 million tonnes at 0.49 g/t) as of July 1, 2018, an approximate decrease of 74,228 ounces of gold or 8% from April 1, 2017.”
  • Consolidated Zinc Ltd. informed on its plan to start pilot plant production at its Plomosas project in Chihuahua. The mining scoping studies focus on sulfide mineralization of the updated resource, starting with a 20,400 tonnes indicated resource @ 13.8% Zn, 2.4% Pb. The capital cost is expected to be low, including plant refurbishment and tailings dam upgrade.

ON DEALS AND CORPORATE ISSUES

  • Golden Reign Resources Ltd. and Marlin Gold Mining Ltd. Entered into a definitive agreement to combine businesses and amend stream agreement with Sailfish Royalty Corp. Golden Reign will acquire all of the issued and outstanding shares of Marlin and satisfaction of all closing conditions of the business combination by way of plan of arrangement. As a condition to closing the Transaction, Sailfish has agreed to restructure its existing gold stream on San Albino (La Trinidad, Sinaloa).
  • Megastar Development Corp. closed the transaction to acquire 100% interest on the Rama de Oro, Magdalena and Yautepec projects in Oaxaca. Megastar paid USD$45 K and issued 1.5 M common shares to Minera Zalamera S.A. de C.V., as contemplated in the option agreement. “Furthermore, Mr. David M. Jones, president of Minera Zalamera, has been appointed to the board of directors of Megastar.”
  • San Marco Resources Inc. signed an earn-in agreement with Antofagasta plc on the Chunibas project, located in Sonora. Antofagasta can acquire a 70% interest in the project by spending US$8 M in exploration, and making cash payments on the aggregate of US$200 K over a period of 4 years. A firm commitment of US$700 K will be used primarily for an initial drill program, including $100 K of reimbursement to San Marco of recent exploration expenditures. “The Project consists of stratiform, volcanic hosted coppersilver mineralization, similar to several ore deposits in northern Chile and is a style of mineralisation not previously discovered in Mexico.”

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, open cut in one of the structures of the Pozos District, Guanajuato. Picture by Jorge Cirett.

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Highlights on the First Week of August, 2018. Mining and Exploration News in Mexico

Marble breccia cemented by FeOx

By Miguel A Heredia

During the 31st week of the year (July 30th to August 05th, 2018), at least 20 press releases were announced by companies working in Mexico, with six informing on exploration results, five announcing production results, five communicating deals and corporate issues, two reporting on resources and developments, and two  announcing financing issues.  ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Chihuahua, Silver Spruce received approval to drill its Pino de Plata project, Radius Gold-Pan American Silver announced a JV agreement to explore and drill the Amalia project, and VVC reported drilling results from its Samalayuca property. In Sinaloa, Goldplay reported drilling results from its El Habal project. In Durango, First Mining signed an agreement to option its Las Margaritas gold project to Gainey.  ON MINING, Several companies reported Q2, 2018 results on its Mexican operations. In Sonora, Alamos Gold announced Q2, 2018 results from their Mulatos and Chanate mines. In Sinaloa, McEwen provided Q2, 2018 results from its El Gallo mine. In Durango, Excellon announced Q2, 2018 results from its La Platosa mine. Great Panther reported Q2, 2018 results from their mining operations in Mexico and Peru. In Guerrero, Telson presented Q2, 2018 results from its Campo Morado mine. ON FINANCING, VVC announced a non-brokered private placement for $CA 1.5M. Colibri Resource negotiated an agreement to provide debt financing in an amount up to CAD $400K.  ON RESOURCES AND DEVELOPMENT, Premier Gold provided an exploration update on its Mercedes mine in Sonora.  Sierra Metals filed a NI 43-101 technical report for its Cusi mine in Chihuahua.  ON DEALS AND CORPORATE ISSUES, Goldplay secured eligibility for its shares and appointed its VP Corporate Development and Exploration. SilverCrest announced the resignation of one of its Directors. Equinox Gold announced court approval of the arrangement for the Solaris Copper spinout. VVC announced that its Annual General meeting for shareholders will be held on August 21. Radius Gold and Pan American silver entered in an agreement to explore the Amalia project in Chihuahua.

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Silver Spruce Resources Inc., received approval for drilling its Pino de Plata project in Chihuahua. The company plans to perform a first phase of 1,500m of diamond drilling to test high grade targets identified with surface sampling, with a follow-up phase 2 where results warrant. The first drill target is El Terrero, an area of 2 square km area showing disseminated epithermal mineralization in intrusive rocks, where surface sampling returned up to 557 g/t Ag along with anomalous Au, Cu, Pb and Zn values. Six holes are planned with targeted depths to 100m. A second target is the Teodora Vein, where surface sampling reported up to 553 g/t Ag with anomalous values of Au, Cu, Pb and Zn. Three holes are proposed with planned depths to 100m. The third target is the Santa Elena Gossan, an area of 20 square km where surface rock sampling on carbonate replacement mineralization in limestone/marble and sandstone/hornfels assayed up to 349 g/t Ag with anomalous base metal values. Three to five holes are proposed in this target area with planned depths to 100m.
  • Radius Gold Inc., and Pan American Silver Corp., entered in a JV agreement to explore the Amalia project in Chihuahua. This option agreement is to explore a corridor of 3.5km of strike length and 600m of vertical interval, where 3 high grade targets showing epithermal Ag-Au mineralization in veins, vein breccias, and disseminated have been identified following the trace of a large regional fault zone. The Campamento target is a 500m by 70m zone of intense silicification and brecciation with massive and stockwork veining. A chip channel sampling returned 62m of 0.43 g/t Au and 98 g/t Ag. High grade has been also identified in this target with the most significant result returning 4.5m of 10.3 g/t Au and 202 g/t Ag. Radius and Pan American plan to drill test 100m to 250m below surface. The Guadalupe target is a high grade andesite structurally controlled breccia zone located 450m south along strike from the Campamento target and 250m lower in the geological section. A continuous chip sampling on the Guadalupe target returned 7m of 3.62 g/t Au and 1,048 g/t Ag, and 4m of 3.92 g/t Au and 888 g/t Ag. The Dulces target is a vein located 800m NE of Campamento target at the same elevation and occurs within an extensive argillic-altered andesite and related gold in soil anomaly. Sampling has returned 1m of 34 g/t Au and 13 g/t Ag, and 1.5m of 114.5 g/t Au and 57 g/t Ag.
  • VVC Exploration Corporation, reported drill results from its Samalayuca project in Chihuahua. The phase 3 was planned to drill 3,000m and begun in May 2018 with 8 holes completed to date. Results of the three first holes were 30m of 0.34% Cu and 6 g/t Ag, including 14m of 0.54% Cu and 10 g/t Ag; 7m of 0.39% Cu and 7 g/t Ag; and 25m of 0.43% Cu and 7 g/t Ag. These results extend the copper mineralization at La Gloria zone previously drilled in 2017.
  • Goldplay Explorations Ltd., announced initial results of four drill holes from its El Habal project in Sinaloa. The most significant results are 77.5m of 0.43 g/t Au, including 9.45m of 2.05 g/t Au, and 15.4m of 1.35 g/t Au. The mineralization intersected consisted of a series of mineralized breccias, structures/zone faults present in a 6km long mineralized corridor which represent a high-level gold system hosted by a volcanic sequence with intrusives and related hydrothermal fluids.
  • First Mining Gold Corp., and Gainey Capital Corp., signed an option agreement in which Gainey can acquires 100% of the Las Margaritas Gold project in Durango. Under the terms of the four year option agreement, Gainey can elect to make either annual share or cash payments to First Mining in the following amounts:

 

 

 

 

  1. Upon completion, Gainey will obtain 100% ownership of the Las Margaritas project and First Mining will retain a 2% net smelter returns (“NSR”) royalty, with Gainey having the right to buy back 1% of the NSR royalty for USD$1,000,000 up until the first anniversary of the commencement of commercial production at the project.

ON MINING

  • Alamos Gold Inc., presented Q2 2018 results from their Mulatos and El Chanate mines in Sonora. At Mulatos, the company produced 50.6K Oz Au at an all-in sustaining cost (AISC) per ounce of gold sold of $854. At El Chanate, Alamos produced 10.1K Oz Au at an AISC per ounce of gold sold of $1,442.
  • McEwen Mining Inc., reported Q2 2018 results from its El Gallo Fenix mine in Sinaloa. The compnay produced 10.8K GEOs (Silver and gold production are presented as GEOs). Total cash costs and AISC per GEO were $783 and $816 respectively.
  • Excellon Resources Inc., announced Q2 2018 results from its La Platosa mine in Durango. In Q2, 2018, the company milled 16.1K tonnes of 507 g/t Ag, 5.7% Pb, and 8.4% Zn to produce 277.7K Oz Ag, 1.8M Lb Pb, and 2.8M Lb Zn. Metallurgical recoveries for Ag, Pb, and Zn were 89.6%, 80.2%, and 82.2% respectively.
  • Great Panther Silver Limited, reported results from their mining operations in Mexico and Peru for the Q2, 2018 period. The company did not release detail information from its Mexican operations (Topia mine in Durango and Guanajuato Mine Complex in Guanajuato).
  • Telson Mining Corporation, presented Q2, 2018 results from its Campo Morado mine in Guerrero. The company processed 162.5K tonnes to produce 19.3M Lb Zn, and 1.3M Lb Pb, with metallurgical recoveries of 73.3% and 31.2% respectively.

ON FINANCING

  • VVC Exploration Corporation, announced a non-brokered private placement for $CA 1.5M. VVC has raised to date $CA 1.15M and expects to complete the rest $CA 350K in August.
  • Colibri Resource Corporation, negotiated an agreement with two shareholders to provide debt financing in an amount of up to CAD$400K.

 ON RESOURCES AND DEVELOPMENT

  • Premier Gold Mines Limited, provided an exploration update on its Mercedes mine in Sonora. The company announced the extension of a high grade vein system on its El Rey de Oro deposit. Significant underground drilling results are 16.55m of 6.21 g/t Au and 102 g/t Ag, 21.95m of 36.65 g/t Au and 171 g/t Ag, 20.5m of 8.1 g/t Au and 121 g/t Ag, and 9.2m of 8.33 g/t Au and 67.7 g/t Ag. Additionally, the company is conducting an underground drilling program to define the high grade Aida target located to the west of the main Mercedes vein where previous drilling has intersected a broad zone of low-grade mineralization with assays of up to 0.64 g/t Au and 0.79 g/t Ag across 31.5 metres. Premier also has the plan to drill test the Marianas vein once the drift has been established in H2 2018, and will go on with the definition and step-out drilling at Diluvio and Lupita areas that were recently brought into production.
  • Sierra Metals Inc., filed a NI 43-101 technical report for its Cusi mine in Chihuahua. The company released results of the PEA study. Results from the PEA include an after-tax net present value (NPV) of US$92.2 Million at an 8% discount rate, an after-tax internal rate of return (IRR) of 75%, a plant processing rate of currently 650 tonnes per day (TPD) growing to 1,200 TPD by Q1 2019 and 2,700 TPD by mid-2021, and a mine life of 9 years based on existing Mineral Resource Estimate.

ON DEALS AND CORPORATE ISSUES

  • Goldplay Exploration Ltd., appointed its VP Corporate Development and Exploration and secured eligibility by the Depositary Trusts Company for its shares on the OTC marketplace where the company trades under the symbol “GLYXF” (El Habal, Sinaloa).
  • SilverCrest Metals Inc., announced the resignation of one of its Directors. (Las Chispas, Sonora).
  • Equinox Gold Corp., announced final court approval of the arrangement for the Solaris Copper spinout (La Verde, Michoacan).
  • VVC Exploration Corporation, announced that its Annual General meeting of shareholders will be held on August 21 (Samalayuca, Chihuahua).
  • Radius Gold Inc., and Pan American Silver Corp., entered in a JV agreement to explore the Amalia project in Chihuahua. Pan American can earn an initial 65% of the property by making cash payments to Radius totaling $US 1.5M (of which $US 100K has been already paid), and expending $US 2M on exploration over four years, and can acquires an additional 10% by advancing the property to a FS.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, a marble breccia cemented by FeOx in an Iron Mine in Coahuila, Mexico. Photo by Miguel A Heredia.

Highlights on the Fourth Week of July, 2018. Mining and Exploration News in Mexico

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Derelict buildings on the Pozos District, Guanajuato.

By Jorge Cirett

During the 30th week of the year (July 23rd to July 29th, 2018), at least 14 press releases were announced by companies working in Mexico. Canasil, Endeavour Silver, Goldcorp and Sable updated on exploration advances. Fresnillo, Coeur and Agnico Eagle released Q2 2018 reports. Silver Bull closed the initial tranche of a financing round. Mexican Gold, SilverCrest Metals, Endeavour Silver, Coeur Mining, Agnico Eagle, Excellon and Minera Alamos reported advances on the development or exploration of their resource base. ON MEXICO ISSUES, The Mexican Core Shack now counts with displays from three properties in Chihuahua. ON EXPLORATION, In Chihuahua, Sable Resources released drilling results with good silver values from its Margarita property. In Zacatecas Canasil released drilling results from the Esperanza project; Endeavour Silver published drilling results from the Calicanto property; Goldcorp disclosed exploration efforts at its Santa Rosa project and the recent signing of a JV with Frisco to explore the Mazapil Valley.  ON MINING Fresnillo, Coeur Mining and Agnico Eagle released Q2 2018 reports. ON FINANCING, Silver Bull closed the initial tranche of a financing round, gathering $2.83 M. ON RESOURCES AND DEVELOPMENT, Mexican Gold, SilverCrest, Endeavour Silver, Coeur Mining, Agnico Eagle, Excellon and Minera Alamos updated on exploration efforts to  increase the resource base at their properties. ON DEALS AND CORPORATE ISSUES, No relevant news.

ON MEXICO ISSUES

ON EXPLORATION

  • Canasil Resources Inc. released results from one more drill hole at its Esperanza project in Zacatecas. The samples returned 1.92 m (true width, or TW) @ 190 g/t Ag, 0.13 g/t Au, 1.35% Zn, 0.22% Pb, 0.06% Cu, within 12.20 m @ 68 g/t, 0.11 g/t Au, 1.0 % Zn, 0.17% Pb, 0.07% Cu. This intercept is 225 m below the surface, 50 m below and 25 m by the side of a previous intercept, opening the southeast extension of the La Esperanza vein for additional drilling. “Drilling has traced the La Esperanza vein over a strike distance of 425 metres and to a depth of 350 metres and remains open for expansion both to the northwest and southeast along strike and to depth”.
  • Endeavour Silver Corp. published drilling results from the Calicanto, Santa Fe and Misie-Karla veins at the Calicanto property in Zacatecas. Some of the highlighted results comprise: 1.2 m (TW) @ 10.5 g/Au, 42 g/t Ag; 1.0 m @ 4.39 g/t Au, 20 g/t Ag; 1.0 m @ 2.65 g/t Au, 15 g/t Ag; 0.8 m @ 0.26 g/t Au, 498 g/t Ag; 0.9 m @ 7.38 g/t Au, 141 g/t Ag; 2.7 m @ 2.05 g/t Au, 120 g/t Ag; 1.3 m @ 5.79 g/t Au, 121 g/t Ag; 1.1 m @ 5.54 g/t Au, 269 g/t Ag; 1.0 m @ 0.30 g/t Au, 589 g/t Ag. The Calicanto property is located close to El Compas mine, potentially providing further growth to the new operation.
  • Goldcorp Inc. informed on its exploration efforts in Mexico. At its Santa Rosa project in Zacatecas, 7,624 m of diamond drilling have been completed in the first half of 2018, with 2,121 m in the second quarter. Santa Rosa “is interpreted as a quartz porphyry complex intruding a contemporaneous volcanic pile underlain by Lower Jurassic to Upper Cretaceous carbonate stratigraphy”. Drilling continues “to intersect broad low grade gold mineralization associated with dacitic porphyry dykes as well as high grade skarn style mineralization in adjacent carbonate rocks…”. On June 20, 2018, Minera Frisco, S.A.B. and Goldcorp entered into a JV arrangement to amalgamate 23,300 ha of exploration ground on the Mazapil Valley, with Goldcorp as manager overseen by a technical committee with equal representation. Drilling of the near-mine JV target Santa Cruz was commenced on the second quarter.
  • Sable Resources Ltd. Released results from two drill holes on the Margarita vein at its Margarita property in Chihuahua. Results confirm vein strike continuity for at least 500 m to a depth of 50 m from surface. True width of the intervals is estimated to be 90% of the intercept, comprising 4.25 m @ 430 g/t Ag, 0.18% Pb, 0.66% Zn; 8.70 m @ 169 g/t Ag, 0.12% Pb, 0.59% Zn; 4.35 m @ 30 g/t Ag, 1.06% Pb, 0.56% Zn. Systematic drill testing will continue “along the 1.6 km of known extension of the Margarita vein and along the other three veins identified within the property limits”.

ON MINING

  • Fresnillo PLC. released second quarter production results for 2018, period during which 234 K Oz Au and 15.34 M Oz Ag were produced. At the Fresnillo mine in Zacatecas 3.8 M Oz Ag, 10,953 Oz Au, 5,052 tonnes Pb, 7,979 tonnes Zn were produced from treating 620.9 K tonnes of ore @ 211 g/t Ag, 0.70 g/t Au, 0.9% Pb, 1.74% Zn. At the Saucito mine in Zacatecas, 5.23 M Oz Ag, 22,908 Oz Au, 5,327 tonnes Pb, 7,549 tonnes Zn were produced by processing 723.3 K tonnes of ore @ 263 g/t Ag, 1.28 g/t Au, 0.86% Pb, 1.64% Zn. At the Ciénega mine in Durango, 16,689 Oz Au, 1.52 M Oz Ag, 1,352 tonnes Pb, 1,231 tonnes Zn were produced by milling 330.9 K tonnes of ore @ 1.65 g/t Au, 166 g/t Ag, 0.67 % Pb, 0.77 % Zn. At San Julián in Chihuahua, production comes from two sources: phase I veins and phase II veins (disseminated). From phase I veins 19,584 Oz Au, 1.26 M Oz Ag, were produced from processing 289.8 K tonnes @ 2.12 g/t Au, 144.6 g/t Ag. From phase II veins (disseminated) 513 Oz Au, 2.27 M Oz Ag, 1,493 tonnes Pb, 5,254 tonnes Zn were produced by treating 540.3 K tonnes of ore @ 0.07 g/t Au, 156.7 g/t Ag, 0.42% Pb, 1.26% Zn. At La Herradura mine in Sonora, 117,886 Oz Au, 363 K Oz Ag were produced by processing 5.6 M tonnes of ore (33.6 M tonnes hauled) @ 0.76 g/t Au, 2.6 g/t Ag. At Nochebuena in Sonora, 45,308 Oz Au, 18 K Oz Ag were produced by treating 4.55 M tonnes of ore (22 M tonnes hauled) @ 0.54 g/t Au, 0.18 g/t Ag
  • Coeur Mining Inc. reported second quarter 2018 financial results, including figures from its operations In Mexico. At Palmarejo in Chihuahua, 33,702 Oz Au, 2.07 M Oz Ag were produced by milling 344 .1 K tonnes of ore @ 3.42 g/t Au, 213.4 g/t Ag, with recoveries of 89.9% Au, 87.5% Ag.
  • Agnico Eagle Mines Ltd. reported second quarter 2018 results, with figures from its Mexican operations. At Pinos Altos in Chihuahua, 603 K tonnes were processed at a rate of 6.626 tpd (tonnes per day) @ 2.43 g/t Au, to produce 43,646 Oz Au at a production cost of $796 per OZ Au. “In 2018, Pinos Altos is transitioning into a predominantly underground mining operation, with associated higher costs”. At La India in Sonora, 1.56 M tonnes of ore were processed at a rate of 17,099 tpd @ 0.65 g/t Au at a total cash cost of $691 per Au Oz. At the satellite operation Creston Mascota 255 K tonnes of ore were processed at a rate of 2,802 tpd @ 0.51 g/t Au to produce 8,716 Oz Au at a total cash cost of $978 per Au Oz.

ON FINANCING

  • Silver Bull Resources Inc. closed the initial tranche of its private placement for gross proceeds of $2.83 M. An aggregate cash commission on the initial tranche of $184 K was paid (Sierra Mojada, Coahuila).

ON RESOURCES AND DEVELOPMENT

  • Mexican Gold Corp. reported results from continued sampling at historical mines on the Changarro zone of its Las Minas property in Veracruz. The Changarro – La Perdida zone is 600 m East of the current resource, extends more than 400 m by 850 m on surface, and contains proximal (garnet-magnetite-sulfide) and distal (jasperoid-magnetite-tremolite-wollastonite) skarn mineralization. Highlighted results include 2 m @ 5.1 g/t Au, 14 g/t Ag; 2 m @ 5.0 g/t Au, 2 g/t Ag; 1.4 m @ 11.1 g/t Au, 1 g/t Ag; 2 m @ 27.3 g/t Au, 12 g/t Ag; 2 m @ 16.7 g/t Au, 12 g/t Ag; 2 m @ 7.8 g/t Au, 3 g/t Ag.
  • SilverCrest Metals Inc. released drilling results from the drilling of the Babicanora Norte vein at its Las Chispas property in Sonora. Some of the highlighted intercepts (TW) comprise: 2.2 m @ 61.4 g/t Au, 2,833 g/t Ag (including 0.4 m @ 305 g/t Au, 13,889 g/t Ag); 1.4 m @ 1.88 g/t Au, 206 g/t Ag; 1.2 m @ 2.89 g/t Au, nil Ag; 1.3 m @ 1.50 g/t Au, 176 g/t Ag; 1.4 m @ 51.43 g/t Au, 2,838 g/t Ag (including 0.4 m @ 153.5 g/t Au, 7,430 g/t Ag); 2.1 m @ 6.54 g/t Au, 795 g/t Ag. Argentite, native silver, chalky white silver oxides, free gold, acanthite and polybasite (Las Chispas is a famous site locality for polybasite crystals) have been identified in the mineralized intervals. The vein has now high-grade intercepts over 900 m of longitude and 75 to 125 m in height. A new unnamed vein between the Babicanora and Babicanora Norte veins has also been identified, returning 0.5 m @ 2.43 g/t Au, 182 g/t Ag; 0.5 m @ 2.80 g/t Au, 198 g/t Ag.
  • Endeavour Silver Corp. informed that the El Compas mine in Zacatecas currently has an output of 250 tonnes per day (tpd). The La Plata mill has completed commissioning, and ramp up has taken production to 170 tpd, aiming to end July with a 250 tpd throughput. Management forecasts commercial production will be achieved during the current quarter.
  • Coeur Mining Inc. informed that, at its Palmarejo property in Chihuahua, as many as four rigs continued targeting expansion of the Nacion and Zapata resources and definition of the recently-discovered Madero and Rampa veins and the Jacobo and Portales veins. “Up to three rigs focused on capitalized, resource conversion drilling at Independencia and Guadalupe. Both expansion and conversion drilling levels are expected to continue at the current accelerated pace throughout the second half of the year”.
  • Agnico Eagle Mines Ltd. informed that its Pinos Altos mine in Chihuahua is transitioning into a predominantly underground mining operation with associated higher costs, reason for which the development of satellite deposits is key to the operation. During the Q2 development of the Sinter and Cubiro satellite deposits continued, with Sinter envisaged as an underground an open pit operation and Cubiro as an underground operation with the potential to supply high-grade ore. Other deposit, Reyna de Plata, hosts 110 K Oz Au, 3.9 M Oz Ag (5.8 M tonnes @ 0.59 g/t Au, 21 g/t Ag) at open pit depth, as well as 93 K Oz Au, 1.4 M Oz Ag (1.2 M tonnes @ 2.35 g/t Au, 35 g/t Ag) at underground depth. “There is growth potential down-dip from the 2.5-kilometre-long deposit and along an additional 1.5 kilometres of structure immediately to the east of the deposit”. “Recent results at Madrono are encouraging for the potential of open pit deposits in the Madrono, Santa Martha and Madera veins, as well as significant high gold grades supporting a potential underground mining scenario”.
  • Agnico Eagle Mines Ltd. disclosed that exploration for satellites deposits to its La India mine in Sonora is focusing ate the El Realito zone, 1.5 Km to the NE. Initial indicated mineral resources of 112 K Oz Au, 643 K Oz Ag (5.0 M tonnes @ 0.70 g/t Au, 4 g/t Ag and inferred resources of 18 K Oz Au, 97 K Oz Ag (1.4 M tonnes @ 0.40 g/t Au, 2 g/t Ag) have been declared. In here mineralization is associated to steep parallel structural corridors of breccia that brought precious metals into favorable volcanic rock layers. El Realito remains open to the NE and SW.
  • Agnico Eagle Mines Ltd. acquired the 42,000 ha Santa Gertrudis gold property in Sonora in November 2017. “Three favorable geological trends with a potential strike length of 18 kilometres have been identified on the property with limited drilling between deposits”. To the end of Q2 2018, 9,152 m have been drilled in 54 holes mainly in three zones: Corral, Greta and Cristina (more than 4 km apart from each other). Some of the highlighted results include: At Greta, 9.4 m @ 4.7 g/t Au, 18 g/t Ag; 7.5 m @ 1.1 g/t Au; 9.9 m @ 5.3 g/t Au; 6.8 m @ 0.4 g/t Au, 15 g/t Ag; 4.4 m @ 1.2 m g/t Au, 13 g/t Ag. At Cristina, 69.7 m @ 1.0 g/t Au, 5 g/t Ag; 40.8 m @ 0.9 g/t Au, 8 g/t Ag. At Corral, 21.5 m @ 0.9 g/t Au, 2 g/t Ag; 7.7 m @ 1.5 g/t Au, 15 g/t Ag; 13.3 m @ 2.1 g/t Au, 9 g/t Ag.
  • Agnico Eagle Mines Ltd. informed that on the first half of 2018 57 diamond drill holes (19,124 m) were completed at its El Barqueño property in Jalisco. “Approximately 35,000 metres of drilling is expected to be completed in 2018 at the El Barqueno project, with a principal focus on testing new target areas. Exploration expenditures in 2018 are expected to total approximately $9.7 million”.
  • Excellon Resources Inc. announced an updated mineral resource estimate for the Platosa mine in Durango. The updated resource includes 17,120 m of additional surface and underground drilling completed from August 2016 to March 2018. Indicated resources comprise 485 K tonnes @ 549 g/t Ag, 5.6% Pb, 5.9% Zn, containing 8.56 M Oz Ag, 59.7 M Lb Pb, 62.9 M Lb Zn; inferred resources comprise 13 K tonnes @ 516 g/t Ag, 4.7% Pb, 6.5% Zn, containing 216 K Oz Ag, 1.34 M Lb Pb, 1.86 M Lb Zn. Two diamond rigs are testing near mine targets to the north and west of the mine. At the Jaboncillo target, detailed mapping, surface sampling and an initial 3D induced polarization survey were carried out during the second quarter.
  • Minera Alamos Inc. submitted to SEMARNAT (environmental agency) the studies to expand its Santana project operations in Sonora. Granting of the permit will provide the flexibility to go from a bulk mining test to commercial scale once the production decision is made.

ON DEALS AND CORPORATE ISSUES

  • Discovery Metals Corp. No relevant news.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

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On the picture above, derelict buildings on the Pozos District, Guanajuato. Picture by Jorge Cirett.

Highlights on the Third Week of July, 2018. Mining and Exploration News in Mexico

By Miguel A Heredia

During the 29th week of the year (July 16th to July 22th, 2018), at least 30 press releases were announced by companies working in Mexico, with twelve informing on exploration results, nine announcing production results, four reporting on resources and developments, three communicating deals and corporate issues, and two  announcing financing issues.  ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Baja California Norte, One World Lithium presented geophysical results from its Salar del Diablo project. In Sonora, Colibri reported drill results from its El Pilar project, Minaurum reported exploration results from its Promontorio-Quintera project, San Marco announced exploration results from its Chunibas exploration program, and Millrock and Azure provided an exploration update on their Mexican properties. In Chihuahua, Mammoth Resources announced drill results from its Tenoriba project. In Coahuila, Discovery Metals reported exploration results from its Puerto Rico project. In Sinaloa, Kootenay presented exploration results from its Copalito project. In Durango, Southern Silver announced an expansion of the exploration program at its Cerro Las Minitas project. In Zacatecas, Advance Gold reported drill results from its Tabasquena project.  In the Estado de México, Impact discovered new zones at its San Ramon mine.  ON MINING, Several companies reported Q2, 2018 results on its Mexican operations. In Sonora, Mexus provided an update on its 370-8 Brothers property in Sonora. In Chihuahua, Sierra Metals announced Q2 results from its Bolivar and Cusi mines while GoGold reported results from its Parral property. In Sinaloa, Americas Silver presented Q2 results from its Cosala operation. In Durango, Avino reported Q2 results from its Avino mine. In Oaxaca, Fortuna Silver announced Q2 2018 results from its San Jose mine. First Majestic presented Q2 2018 results from its Mexican operations in Sonora, Sinaloa, Chihuahua, Durango, Zacatecas, Jalisco and Estado de Mexico. In Puebla, Almaden announced an increase of the average mill feed grades for its Ixtaca property.  ON FINANCING, Bacanora Minerals dropped a $100M placing for its Sonora Lithium project in Sonora. Candente announced the approval to extend the purchase of 5M of share warrants. ON RESOURCES AND DEVELOPMENT, Aranzazu filed a NI 43-101 FS for the restart of operations at its Aranzazu mine in Zacatecas and updated the resource estimate. Starcore filed updated 43-101 technical report on its San Martin mine. Capstone filed a NI 43-101 technical report for its Cozamin mine in Zacatecas. Gold Resource announced an expansion of its Arista Mine in Oaxaca. ON DEALS AND CORPORATE ISSUES, Evrim announced results of its annual and special general meeting of shareholders.  Silver Spruce executed an offtake agreement for potential future production from its Pino de Plata project in Chihuahua.

ON MEXICO ISSUES

  • No relevant news.

 ON EXPLORATION

  • One World Lithium Inc., presented results from a geophysical survey conducted on its Salar del Diablo project in Baja California Norte. Three very large and highly conductive zones were identified by a Volterra TEM in loop survey. Zone 1 is > 100m thick and covers six square km. Zone 2 surrounds Zone 1 and is < 100m thick and covers 24 square km. Zone 3 is estimated to be approximately 200m thick and covers > 30 square km.
  • Colibri Resources Corporation, reported RC drilling results from its Pilar project in Sonora. Significant results are 61m of 0.75 g/t Au, including 1.5m of 17.3 g/t Au; 6m of 0.68 g/t Au; 3m of 5.40 g/t Au; and 34.5m of 0.32 g/t Au. The drill results extend the Main Zone´s mineralized envelope to the northwest and southeast by upwards of a total of 145m. It represents an increase of 52% in the length of the Main Zone. Potential is open in both directions of the mineralized zone.
  • Minaurum Gold Inc., discovered the extension of the Promontorio-Quintera and Nueva Europa veins at its Alamos Silver project in Sonora. The Promontorio-Quintera vein was mapped and extends for 1km and is cut-off and down-dropped by a northwest trending fault while the Nueva Europa vein was mapped for over 600m. The extensions have the potential to host virgin mineralization at depth. Surface sampling on Promontorio South vein returned 1.1m of 181 g/t Ag and 1.06% Cu, while at Nueva Europa South vein, a 0.8m long chip rock sample returned 52 g/t Ag and 0.54% Cu, and a dump sample returned 91 g/t Ag and 1% Cu.
  • San Marco Resources Inc., identified many new significant Cu-Ag occurrences at its Chunibas property in Sonora; conducted a portable X-ray fluorescence rock analysis on an area of 300m by 1,400m, indicating anomalous to significant copper values, and received assays from ninety six rock chip samples ranging from 0.1% to 1.34% Cu. The company also carried out a saw-cut continuous channel sampling returning 30m of 0.16% Cu and 3 g/t Ag, and 22m of 0.17% Cu and 2 g/t Ag. Now, the mineralized NW-SE corridor is 1.7Km long by 300m wide, and remains open along strike and down dip. San Marco has begun preparations to perform a drill program at its Chunibas property.
  • Millrock Resources Inc., provided and exploration update on their Mexican properties in Sonora and San Luis Potosi. In Sonora, at La Navidad project, a 2,900m drilling program has been recently completed to test the El Cobre and the Crossover targets. Complete results are anticipated in early August. At El Picacho project (Orogenic gold), drill targets are emerging from the exploration work conducted in the first half of 2018. The company has authorized a drill program to begin later in the summer. At Batamote, good geological signs of a porphyry copper deposit have been identified and a major company is currently evaluating the property. At Los Cuarenta project (low-sulphidation epithermal Au-Ag), Millrock has acquired an option to purchase a key internal claim called Santa Rosalia. Drilling targets have been developed and drilling permit is in place. In San Luis Potosi, the Guadalcazar project hosts a high-grade Ag-Pb-Zn skarn with good drill intersections and historic mine workings, with potential to expand the known deposit. Millrock has received an offer to form an option agreement.
  • Azure Minerals Limited., provided an exploration update on its Sara Alicia and El Alacran properties in Sonora. At the Sara Alicia project, the stage 2 drilling campaign confirmed near-surface, high-grade Au-Co mineralization with maximum grade returning 53.8 g/t Au over 0.90m and 2.82% Co over 0.80m. The best Au interception was 19.6m of 8.6 g/t Au, including 15.3m of 10.6 g/t Au, while the best Co interception was 3.65m of 1.19% Co, including 1.5m of 2.66% Co. At the El Alacran project, the drilling campaign indicated the southern expansion of Loma Bonita epithermal Au-Ag system based on the presence of silicified zones covered by fresh-rock and high-resistivity geophysical anomalies extending to depth. At Cerro Colorado the company geologists identified the presence of porphyry-type alteration and veining with trace copper and molybdenum mineralization, warranting follow-up work. Teck will continue exploring the property with drilling planned to restart in Q3 2018.
  • Mammoth Resources Inc., announced drill results from its Tenoriba project in Chihuahua. Results are from the Masuparia area, in the central portion of the 6 km long trend of gold mineralization on the property. Significant results are 3m of 0.19 g/t Au and 10 g/t Ag in hole TEN 17-09 and multiple intersections in hole TEN 17-10 such as 4.5m of 0.42 g/t Au and 8 g/t Ag; 4.5m of 0.45 g/t Au and 3 g/t Ag, 22.5m of 0.35 g/t Au and 4 g/t Ag, 3m of 1.31 g/t Au and 50 g/t Ag, 3m of 0.65 g/t Au and 5 g/t Ag, and 24m of 0.31 g/t Au and 4 g/t Ag.
  • Discovery Metals Inc., reported underground channel sample results from the San Jose mine within its Puerto Rico project in Coahuila. Assay results represent 140m of workings and were collected at 3-5m intervals along both sides of the entire length of the developed workings. Mineralization is related to mantos, chimneys and faults. Mantos range from 0.5m to 1.5m in width (restricted by dimensions of workings) and are open in all directions laterally along strike and dip. Fourteen samples from mantos returned an average of 229 g/t Ag, 9.3% Pb, 17.6% Zn, and 0.3% Cu. Chimney widths range from 1m to 6m, with the main part of the chimney having a width of 5-6m, while the mineralized faults widths range from 0.4m to 1.4m, and are open along strike and at depth. Thirty three samples from chimneys and faults returned an average grade of 50 g/t Ag, 3.5% Pb, 4% Zn, and 0.8% Cu. The company is currently carrying out a detail structural study on the entire property to identify controls on mineralization. Additionally, it is planning to conduct a magnetic survey in preparation for drilling later in 2H 2018.
  • Kootenay Silver Inc., presented sampling results from its Copalito project in Sinaloa. Copalito is a low-sulphidation epithermal vein system. At least 4 main veins and numerous smaller veins have been identified, with individual veins found to be up to 15m wide and at least 2km long along strike. Eleven samples (5 chips and 6 grabs) on Cobriza vein returned grades from 47 to 2.5 kg/t Ag and 0.03 to 2.7 g/t Au, while twenty two samples on El Pilar vein returned grades from 2 to 166 g/t Ag and 0.04 to 1.05 g/t Au. Mapping and sampling on the La Chiva and Cinco Señores veins in the southern area of Copalito is ongoing. All the results will be used to determine grade distribution along the veins for drill targeting.
  • Sothern Silver Exploration Corp., announced an expansion of the exploration program at its Cerro Las Minitas project in Durango, with the mobilization of a second drill rig. The objective is to drill 2,000m of core to test multiple Ag-Au quartz veins within the recently acquired CLM West claim. Drill targets were identified by mapping and ground geophysics, and a sampling program of over 6000 float and rock chip samples throughout a >10km by 5km N-S corridor underlying the 207 square km CLM West claim package.
  • Advance Gold Corp., reported phase 1 drill results from its Tabasquena project in Zacatecas. Significant results are 10.5m of Au-Ag mineralization including 1.7m of 9.46 g/t Au and 37 g/t Ag, 0.55m of 12.65 g/t Au and 28 g/t Ag, and 0.55m of 6.31 g/t Au and 42 g/t Ag. The company is planning a second phase drill program to test the recently discovered veins and explore for new ones, as well as to follow-up on the high-grade gold intersections.
  • Impact Silver Corp., discovered new zones at its San Ramon mine through an underground drill program. Significant results with intersections 100m south of the current levels of the San Ramon mine are 2.04m of 0.23 g/t Au, 661 g/t Ag, 1.28% Pb, and 3.28% Zn; 4.97m of 0.12 g/t Au, 354 g/t Ag, 0.57% Pb and 1.48% Zn; and 1.25m of 0.1 g/t Au, 259 g/t Ag, 0.34% Pb and 1.14% Zn. The zone remains open for further extension vertically above for nearly 300m and to the south.

ON MINING

  • Mexus Gold US, provided and update on its 370-8 Brothers property in Sonora. VAT leaching test of oxidized sulphide ore reported that 50% of the sulphides remain as encapsulated Au and Ag bearing mineralization, with As, Pb and Zn, making difficult its extraction by simple gravity and/or cyanide leaching, unless they are pretreated via roasting to eliminate the sulphur. “About 80 tons of this oxidized ore was crushed to < 3 inches and put in a steel tank and leached for a period of 25 days.  Eight head assay samples were taken averaging 1g/t Au and 50 g/t Ag with one sample showing 30 g/t Au and another sample with 800 g/t Ag.  Solution was assayed daily for a week showing recoveries of 1.25% in gold and 13% in silver with a slow increase after a week and large cyanide consumption.  The solution was assayed after 3 weeks and turned out to have minimum increase up to 26% in silver and gold remaining the same”.
  • Sierra Metals Inc., reported Q2 results from its Bolivar and Cusi mines in Chihuahua. At Bolivar mine, a total of 272K tonnes were processed at grades of 0.15 g/t Au, 17 g/t Ag, and 0.97% Cu to produce 911 OZ Au, 110K Oz Ag, and 4.7M Lb Cu, with metallurgical recoveries of 71.81%, 75.53% and 81.33% respectively. At Cusi mine, a total of 46.4K tonnes were processed at grades of 0.16 g/t Au, 156 g/t Ag, 0.4% Pb, and 0.3% Zn, to produce 96 Oz Au, 190K Oz Ag, and 287K Lb Pb, with metallurgical recoveries of 39.8% Au, 81.66% Ag, 77.22% Pb and 0% Zn.
  • GoGold Resources Inc., presented Q2 2018 results from its Parral operation in Chihuahua. GoGold processed 447K tonnes of tailings material to produce 164K Oz Ag and 1,630 Oz Au.
  • Americas Silver Corporation, announced results from its Cosala operation in Sinaloa. On Q2, 2018, the company milled 139K tonnes of 42 g/t Ag to produce 94K Oz Ag, 2.9M Lb Pb, and 8.7M Lb Zn
  • Avino Silver & Gold Mines Ltd., presented Q2 2018 results from its Avino mine in Durango. The company processed 184.7K tonnes of 0.42 g/t Au, 70 g/t Ag, and 0.45% Cu to produce 1,734 Oz Au, 323 Oz Ag, and 1.48M Lb Cu, with metallurgical recoveries of 75%, 81% and 90% respectively.
  • Fortuna Silver Mines Inc., reported Q2 2018 results from its San Jose mine in Oaxaca. Fortuna milled 134K tonnes of 1. 86 g/t Au and 268 g/t Ag to produce 14.4K Oz Au and 2M Oz Ag with metallurgical recoveries of 91.54% and 91.67% respectively.
  • First Majestic Silver Corp., announced Q2, 2018 production results from its Mexican operations. At Santa Elena mine in Sonora, a total of 228K tonnes of 2.3 g/t Au and 120 g/t Ag were milled to produce 11K Oz Au and 535K Oz Ag. At San Dimas mine in Sinaloa, a total of 85.7K tonnes of 4.3 g/t Au and 307 g/t Ag were processed to produce 11.3K Oz Au and 809K Oz Ag. At La Encantada mine in Chihuahua, a total of 238K tonnes of 83 g/t Ag were processed to produce 23 Oz Au and 325K Oz Ag. At La Parrilla mine in Durango, a total of 123.6K tonnes of 131 g/t Ag, 1.4% Pb and 1.5% Zn were milled to produce 235 Oz Au and 361K Oz Ag, 1.6M Lb Pb, and 1.4M Lb Zn. At Del Toro mine in Zacatecas, a total of 65.8K tonnes of 117 g/t Ag and 2.7% Pb were processed to produce 73 Oz Au, 167.6K Oz Ag, and 2.3M Lb Pb. At San Martin mine in Jalisco, a total of 74.4K tonnes of 0.6 g/t Au and 203 g/t Ag were milled to produce 1,331 Oz Au and 138.4K Oz Ag. At La Guitarra mine in Estado de Mexico, a total of 35.7K tonnes of 1.5 g/t Au and 154 g/t Ag were milled to produce 1400 Oz Au and 138.4K Oz Ag. Unfortunately, First Majestic announced the temporary suspension of work at its la Guitarra mine scheduled to start on August 1st. It is until economic conditions improve or the property is sold.
  • Almaden Minerals Ltd., announced an increase of the average feed mill grades of 39% for Au and 47% for Ag from bulk ore sort test for its Ixtaca project in Puebla. Applying the ore sort process, the metallurgical recovery is 88% for Au and 93% for Ag and reduces the environmental footprint over the life of mine by reducing process tailings, water usage and energy requirements and CO2 “The detailed impact of the ore sorting results on the Ixtaca project will be evaluated as part of the ongoing Feasibility Study, which is anticipated to be completed in 2018”.

ON FINANCING

  • Bacanora Lithium plc., dropped a $100M placing for its Sonora Lithium project in Sonora, citing “difficult market conditions”.
  • Candente Gold Corp., announced the approval to extend the exercise period of 5M of share purchase warrants from August 12, 2018 to August 12, 2020.

 ON RESOURCES AND DEVELOPMENT

  • Aura Minerals Inc., filed a NI 43-101 FS for the restart of operations at its Aranzazu mine in Zacatecas. The company also updated the mineral resource and reserve estimates. Measured + indicated resources are 12.5M tonnes of 1.08 g/t Au, 20 g/t Ag, and 1.61% Cu for a total of 435K Oz Au, 8M Oz Ag and 444.4M Lb Cu. Proven and probable reserves are 4.6M tonnes of 1.17 g/t Au, 19 g/t Ag, and 1.72% Cu, for a total of 174K Oz Au, 2.8M Oz Ag, and 176.4M Lb Cu. (Mineral reserves are inclusive of mineral resources). The orebody consists of seven mineralized domains and has a strike length of 1.5km, width up to 250m and 600m depth. The mineral resource estimate is based on 1,336 holes for a total of 219,586m.
  • Starcore International Mines Ltd., filed an updated 43-101 technical report for its San Martin mine in Queretaro in which reported mineral resources and reserves as of April 30, 2018. Total proven + probable reserves are 1.65M tonnes of 2.11 g/t Au and 33 g/t Ag for a total of 154.4K Oz Au Eq. Total indicated + inferred resources are 1.5M tonnes of 1.94 g/t Au and 25 g/t Ag for a total of 113K Oz Au Eq. The total mineral reserves and resources are 3.1M tonnes of 2.03 g/t Au and 29 g/t Ag for a total of 267.3K Oz Au Eq.
  • Capstone Mining Corp., filed a NI 43-101 technical report for its Cozamin mine in Zacatecas. In this TR, Capstone reported a mineral resource estimate which was announced on the past June 05, 2018.
  • Gold Resource Corporation, announced significant drill interceptions of 23.39m @ 2 g/t Au, 200 g/t Ag, 0.58% Cu, 3.1% Pb, and 9% Zn, including 1.66m of 8.92g/t Au, 1.3Kg/t Ag, 0.93% Cu, 6.3% Pb and 8.8%Zn, and 9.94m @ 2.16 g/t Au, 95 g/t Ag, 0.82% Cu, 4.1% Pb and 12% Zn, including 3.1m @ 3.99 g/t Au, 177 g/t Ag, 1.01% Cu, 7% Pb, and 14.5% Zn to expands the Switchback´s strike length by approximately 100m, and discovered a new structure in the Arista vein system intercepting 2.08m @ 1.98 g/t Au, 1.6Kg Ag/ton, 0.25% Cu, 1% Pb, and 2.2% Zn, including 0.9m of 3.31 g/t Au, 2.7Kg/t Ag, 0.45% Cu, 2% Pb, and 4.1% Zn.

ON DEALS AND CORPORATE ISSUES

  • Evrim Resources Corp., announced results of its annual and special general meeting of shareholders. (Cuale project, Jalisco).
  • Silver Spruce Resources Inc., executed an offtake agreement with IBB International Holdings Limited for potential future production from its Pino de Plata project in Chihuahua. “The Company has agreed to deliver any and all future production from the Pino de Plata project for a period of at least ten years, commencing with the first delivery. The ten-year term of the agreement will automatically extend by successive one-year terms, unless either party expresses written desire o terminate the agreement. The purchase price of the delivered production will be at a three percent (3%) discount to the London Metals Exchange metals pricing on the dates of delivery to the buyer”.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, a diatreme breccia in a prospect in Durango, Mexico. Photo by Miguel A Heredia.