Sphalerite with Dolomite

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

Specimen size: 4.2 × 3.6 × 2.8 cm = 1.65” × 1.42” × 1.10”
Main crystal size: 1 × 0.8 cm = 0.39” × 0.31”