Chalcocite with Pyrite

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

Specimen size: 4.9 × 3.5 × 0.7 cm = 1.93” × 1.38” × 0.28”
Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”