Chalcopyrite with Dolomite and Calcite

Salomón Cut, bench 290, Rio Tinto Mines, Minas de Riotinto, Comarca Cuenca Minera, Huelva, Andalusia  Spain

Specimen size: 6.2 × 4.2 × 6.4 cm = 2.44” × 1.65” × 2.52”
Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”