Sphalerite with Calcite

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

Specimen size: 11.8 × 9.8 × 3.8 cm = 4.65” × 3.86” × 1.50”
Main crystal size: 1 × 1 cm = 0.39” × 0.39”