Chalcocite with Sb-rich Tennantite-(Fe) and Pyrite

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

Specimen size: 4.4 × 4 × 3.3 cm = 1.73” × 1.57” × 1.30”
Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”