Chalcopyrite with Dolomite and Calcite

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

Specimen size: 7.2 × 6 × 3.2 cm = 2.83” × 2.36” × 1.26”
Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”