Calcite with Quartz, Sphalerite and Pyrite

Pachapaqui mining district, Pachapaqui, Aquia District, Bolognesi Province, Ancash Department  Peru

Specimen size: 7 × 4.5 × 4.3 cm = 2.76” × 1.77” × 1.69”
Main crystal size: 6.7 × 2.2 cm = 2.64” × 0.87”