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

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

Specimen size: 3.9 × 3.4 × 1.5 cm = 1.54” × 1.34” × 0.59”
Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”