Sinaloa
Mercado Minerals Intersects 0.80 Metres of 675 g/t Silver Equivalent within 3.40 Metres of 403 g/t Silver Equivalent at El Pilar Vein Copalito Project
AMERICAS GOLD AND SILVER CORPORATION ANNOUNCES SECOND QUARTER PRODUCTION
Gavilanes Delivers Strongest Polymetallic Interval to Date Below High Grade Near-Surface Silver Mineralisation
Mexico’s Best Lead and Zinc Drilling Intercepts, Second Quarter 2026
Thirteen companies released lead and/or zinc results from fourteen drilling programs in Mexico during the second quarter of 2026. The best results for both lead and zinc come from a volcanogenic massive sulfides (VMS) deposit: Luca Mining’s Campo Morado mine in Guerrero, with a core length interval of 100.70 m averaging 0.7% Pb, 2.6% Zn.
Eight of the twelve properties present intermediate sulfidation epithermal mineralization, including Copalito, Tahuehueto, Zacatecas Silver, San Marcial-Plomosas, Zacualpan, Cruz de Plata, Gavilanes and Alamos Silver. Gran Pilar also displays intermediate sulfidation epithermal mineralization, probably distal to a porphyry copper system. The Claudia project in Durango presents mainly low sulfidation epithermal mineralization, but the intervals here included represent some intermediate sulfidation mineralization. Cerro Las Minitas, Cosalá and La Parrilla can be described as skarn and carbonate replacement systems, the latter presenting also intermediate sulfidation mineralization.
To note is that eleven of the fourteen properties with reported lead-zinc intercepts are localized in only three adjacent states: Sonora, Sinaloa and Durango.
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Mexico’s Best Drilling Intercepts, Second Week of July 2026
Four companies announced results from diamond drilling campaigns in Mexico during the week. Coincidentally, the four properties present polymetallic intermediate sulfidation epithermal mineralization.
Silverco Mining reported assays from underground drilling on the Promontorio zone, at its Cusi property in Chihuahua. That drilling is part of the 30,000 m drill program for 2026, focused on infill, expansion and exploration across the area. The best interval returned 10.3 m averaging 1.61 gpt Au, 1,100 gpt Ag, 0.8% Pb, 0.5% Zn. “This infill drilling is specifically aimed at optimizing mine planning and targeting near-term resource expansion that can be integrated into the short-term mine plan.”
Luca Mining presented drilling results from the ongoing exploration program at its Tahuehueto mine in Durango. The best result comprised 4.7 m averaging 3.35 gpt Au, 109 gpt Ag, 0.68% Cu, 0.2% Pb, 12.1% Zn. “Exploration drilling has continued to intersect high-grade gold mineralization in newly identified breccia zones, close to current mine workings.”
Capitan Silver reported results from its 60,000 m drilling program at its Cruz de Plata property in Durango. The current results are from diamond and reverse circulation (RC) drilling on the Jesús María trend, both East and West of the Peñoles Fault. The best intercepts returned 6.70 m averaging 0.24 gpt Au, 257 gpt Ag, 1.3% Pb, 1.4% Zn.
GR Silver Mining announced drill results from the resource expansion drilling program at the San Marcial area in the Plomosas project, in southern Sinaloa. “Diamond drilling on the SE Extension target confirms the extension of high-grade silver mineralization for least an additional 150 metres to the southeast of the 2023 NI 43-101 Mineral Resource Estimate (“MRE”) boundary”. The best results averaged 21.90 m of 0.08 gpt Au, 168 gpt Ag, 0.5% Pb, 1.4% Zn.
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Mexico’s Best Copper Drilling Intercepts, Second Quarter 2026
Nine companies released copper results from ten drilling programs in Mexico during the second quarter of 2026. The best copper intercept is, as in the first quarter, from Luca Mining’s drilling at Campo Morado in Guerrero, with 118.2 m averaging 0.76% Cu. The underground diamond drilling results are from the Largo Norte Zone, which “… is a large, 650m long, consistent mineralized VMS body that dips shallowly to the south and ranges from 20 to 60 meters in thickness”.
Intermediate sulfidation epithermal systems represent 50% of the reported copper result, although all in the bottom half of the table. Alamos Silver, Tahuehueto, Zacualpan, Gavilanes and Gran Pilar (this one as a distal part of a porphyry copper system) fall into this category. Santo Tomás is the only porphyry copper deposit with published results, Dios Padre is a strongly zoned Au-Cu-Ag breccia related to a porphyry copper system whereas Adelita can be defined as a skarn distal to a porphyry copper system. Cosalá presents skarn and carbonate replacement (CRD) mineralization.
Looking at a table like this one it is no apparent that over 80% of the copper produced in Mexico comes from porphyry copper deposits, with the bulk of it originating on the Buenavista del Cobre and La Caridad mines in Sonora.
Mexico’s Best Silver Drilling Intercepts, Second Quarter 2026
Nineteen companies released silver results from twenty drilling programs in Mexico during the second quarter of 2026. The highest silver intercept is from GRSilver Mining at the San Marcial deposit within its extensive Plomosas project in Sinaloa, with an impressive 45 m intercept averaging over 1,600 gpt Ag. The interval includes an 8.6 m subinterval over 8,600 gpt Ag on this step-out hole that intercepted the chlorite-hematite rich breccia in the contact between a Jurassic volcanosedimentary unit and Oligocene volcanic rocks. The multi-stage hydrothermal breccias present are overprinted by polymetallic intermediate sulfidation epithermal mineralization.
Over sixty percent of the projects in this table correspond either to intermediate or low sulfidation epithermal mineralization systems. The more numerous are those of intermediate sulfidation affinity, including San Marcial, Cruz de Plata, Zacualpan, Gavilanes, Coplaito, Alamos Silver, Zacatecas Silver, Tahuehueto, Low sulfidation epithermal systems in the list comprise Copalquín, Terronera and Claudia, while La Colorada (Sonora) adscription remains debatable. Gran Pilar presents characteristics of intermediate sulfidation epithermal affinity, distal to a porphyry copper system.
The rest of the properties display some of the variety of silver mineralization in the country. Cosalá and Cerro Las Minitas present skarn and carbonate replacement (CRD) mineralization styles, while La Parrill adds intermediate sulfidation epithermal mineralization to that mix and Adelita is a skarn distal to porphyry copper style intrusions. Campo Morado is the only volcanogenic massive sulfides (VMS) property in the table and Santo Tomás is the only porphyry copper deposit. Dios Padre is a strongly zoned breccia associated with porphyry copper style intrusions.
By State, Durango has seven entries in the table, Sonora five and Sinaloa four, while Estado de México, Guerrero, Jalisco and Zacatecas have one each.
