Bournonite with Chalcopyrite

Cerro de Pasco, Provincia de Pasco, Departamento de Pasco  Peru

Specimen size: 5.2 × 3.6 × 1.7 cm = 2.05” × 1.42” × 0.67”
Main crystal size: 0.9 × 0.6 cm = 0.35” × 0.24”