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.
