Sphalerite with Dolomite

Troya Mine, Mutiloa, Comarca Goyerri, Guipúzcoa / Gipuzkoa, Basque Country (Euskadi)  Spain (1985)

Specimen size: 4.1 × 3.2 × 1.9 cm = 1.61” × 1.26” × 0.75”
Main crystal size: 1 × 0.8 cm = 0.39” × 0.31”