Sphalerite, Galena, Dolomite

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

Specimen size: 9.4 × 6.6 × 4.6 cm = 3.70”
Main crystal size: 0.5 × 0.5 cm = 0.20”