Sphalerite with Calcite

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

Specimen size: 5.8 × 5.2 × 3 cm = 2.28” × 2.05” × 1.18”
Main crystal size: 2.6 × 2.3 cm = 1.02” × 0.91”