TSX: FVI CA $9.33    NYSE: FSM US $6.97


Commodities Silver, gold, zinc, lead
Location Arequipa, Peru
(Latitude: 15 12' 15" S,
Longitude: 71 51' 40" W)
Ownership 100%
Operation 1,430 tpd underground mine
Land Package 35,000 hectares
Mining Method Overhand cut-and-fill
Deposit type Intermediate-sulfidation epithermal deposit


  • 2015 silver and gold production at 1.7 million ounces and 1,163 ounces, respectively
  • 2015 lead and zinc production at 23.8 million pounds and 35.8 million pounds, respectively

The silver- and base metal-rich epithermal deposits of the Caylloma Mining District of southern Peru have been mined intermittently for over 500 years since the times of the Inca Empire. Located within one of the most important metallogenic provinces of the Andes, past production is estimated at more than 200 million ounces of silver.

Fortuna purchased a 100% interest in the Caylloma Mine and related mining concessions in 2005. Following significant expansion and modernization of the mill, the mine resumed production in the final quarter of 2006. The mill is currently operating at a rate of 1,430 tpd with production sourced primarily from the silver-polymetallic Animas Vein.


Callyoma is located approximately 225 kilometers northwest of Arequipa, Peru at an elevation of 4,500 meters (Latitude: 15 12' 15" S, Longitude: 71 51' 40" W). The mine, processing plant and related infrastructure are located in the Caylloma Mining District, 14 kilometers northwest of the town of Caylloma. The mine is connected to the national power grid and water is locally available.

Geology and Mineralization

The silver-base metal rich epithermal vein deposits of the Caylloma Mining District are hosted by Tertiary calc-alkaline andesitic pyroclastic tuffs and tuff breccias, flows and laharic deposits that unconformably overlie a folded marine sequence of quartzite, shale and limestone of the Jurassic Yura Group. More than 15 major mineralized veins have been identified within the district with the veins typically trending northeasterly and dipping moderately to steeply to the southeast or northwest.

The veins range from 1 to 25 meters in width and range up to 4 kilometers in length. Ore grade shoots are generally subvertical in orientation within the plane of the vein, having lengths of tens to hundreds of meters and extending to more than 300 meters in a downdip direction. Principal ore minerals include sphalerite, galena, chalcopyrite and tetrahedrite with subordinate polybasite, stephanite, argentite, native silver, pyrargyrite, miargyrite, chalcocite, native gold, and other Pb and Ag sulfosalts. Principal gangue minerals are quartz, manganese-rich silicates (dominantly rhodonite), rhodocrosite, and calcite with variable quantities of adularia, illite and barite present locally (Echavarria et al, 2006)

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