Chalcocite with Calcite and Pyrite

Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain

Specimen size: 6.1 × 5.7 × 5.4 cm = 2.40” × 2.24” × 2.13”
Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”