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

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

Specimen size: 6.5 × 4.4 × 2.7 cm = 2.56” × 1.73” × 1.06”
Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”