Chalcopyrite with Gypsum, Dolomite and Calcite

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

Specimen size: 8.4 × 6.9 × 4.8 cm = 3.31” × 2.72” × 1.89”
Main crystal size: 1.6 × 1.5 cm = 0.63” × 0.59”