Chalcocite with Pyrite

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

Specimen size: 2.4 × 2.4 × 2.3 cm = 0.94” × 0.94” × 0.91”
Main crystal size: 1.4 × 0.7 cm = 0.55” × 0.28”