Sphalerite with Siderite

Troya Mine, Mutiloa, Comarca Goyerri, Guipúzcoa / Gipuzkoa, Basque Country (Euskadi)  Spain (±1990)

Specimen size: 5.2 × 4.2 × 3.1 cm = 2.05” × 1.65” × 1.22”
Main crystal size: 1.3 × 0.8 cm = 0.51” × 0.31”