Tetrahedrite with Siderite

La Mure coal mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes  France

Specimen size: 5.1 × 3.6 × 3.5 cm = 2.01” × 1.42” × 1.38”
Main crystal size: 2.7 × 2 cm = 1.06” × 0.79”