Calcite with Dolomite

La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria  Spain (2009)

Specimen size: 7 × 4.8 × 2.6 cm = 2.76” × 1.89” × 1.02”
Main crystal size: 2.3 × 1.9 cm = 0.91” × 0.75”