Siderite, Dolomite, Quartz

La Mure coal mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes  France (1994)

Specimen size: 5.0 × 3.7 × 3.2 cm = 1.97” × 1.46” × 1.26”