Calcite with Dolomite

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

Specimen size: 6.8 × 6.2 × 4 cm = 2.68” × 2.44” × 1.57”
Main crystal size: 4.3 × 3.7 cm = 1.69” × 1.46”