Calcite with Dolomite

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

Specimen size: 7.3 × 4.9 × 5.3 cm = 2.87” × 1.93” × 2.09”
Main crystal size: 2.5 × 2.2 cm = 0.98” × 0.87”