Sphalerite with Bournonite and Siderite

Le Villaret pit, Susville, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes  France (1976)

Specimen size: 8.7 × 7.3 × 4.5 cm = 3.43” × 2.87” × 1.77”
Main crystal size: 2 × 0.7 cm = 0.79” × 0.28”