Calcite with Dolomite and Sphalerite

Áliva Mine (Las Mánforas Mine), Áliva mining area, Picos de Europa massif, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 3.3 × 2.5 × 2.1 cm = 1.30” × 0.98” × 0.83”
Main crystal size: 3 × 2 cm = 1.18” × 0.79”