Chalcopyrite with Dolomite and Calcite

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

Specimen size: 8.9 × 5 × 4.7 cm = 3.50” × 1.97” × 1.85”
Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”