Mineralization within the property often occurs at the transition zone from Chimú up into the Santa and Carhuez rocks. There is a spatial association of dacite porphyry dikes emplaced within structural breccias with both structural and manto-style mineralization.

The Callanquitas veins (Callanquitas Este, Callanquitas Oeste and Cianuro) occur within a north south striking zone of multiple, anastomosing to divergent faults that extends over a length of 2,400 meters.

Individual veins can be up to 1.5km long with thicknesses between 0.2 to 8.2m. The Callanquitas structures are open along strike to the south and north and also at depth. The Callanquitas mineralization is considered an intermediate-sulfidation type, consisting of mineralized structural breccias that originally contained variable quantities of pyrite, arsenopyrite, and minor chalcopyrite. These sulfide minerals were subsequently strongly oxidized to significant depths. The primary mineralized structures (Callanquitas Este and Oeste structures), are nearly vertical and steep westerly dips are common.

The structures cut through a sequence of sandstone, siltstone and quartzite. The silicified sandstone and quartzite units were more amenable to brecciation and therefore more favorable for migrating hydrothermal fluids and mineralization. The dacite intrusive rocks are generally argillically-altered and although the mineralized structures cut through the dacite, the general lack of brec ........

Ore is processed at Planta Las Lomas (“Las Lomas”), located in the Department of Piura, Peru.