Sphalerite with Dolomite and Calcite

Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 4.4 × 2.9 × 2.8 cm = 1.73” × 1.14” × 1.10”
Main crystal size: 1.6 × 1 cm = 0.63” × 0.39”