Sphalerite with Dolomite

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

Specimen size: 3.6 × 2.4 × 1.4 cm = 1.42” × 0.94” × 0.55”
Main crystal size: 1 × 1 cm = 0.39” × 0.39”