Calcite with Dolomite

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

Specimen size: 7.8 × 4.4 × 5.3 cm = 3.07” × 1.73” × 2.09”
Main crystal size: 3.4 × 3.4 cm = 1.34” × 1.34”