Chalcopyrite with Dolomite and Calcite

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

Specimen size: 5.5 × 4 × 2.8 cm = 2.17” × 1.57” × 1.10”
Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”