Calcite with Dolomite and Chalcopyrite

La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria  Spain (±2006)

Specimen size: 7.7 × 6.8 × 3.2 cm = 3.03” × 2.68” × 1.26”
Main crystal size: 3.2 × 2.8 cm = 1.26” × 1.10”