Siderite, Dolomite, Quartz
Villaret pit, Susville, Grenoble, Isère, Auvergne-Rhône-Alpes, France
Sharp rhombohedral crystals of Dolomite, twinned, accompanied by lenticular crystals of light brown Siderite with very marked edges, in a matrix carpeted with water-clear crystals of Quartz.
La Mure coal Mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes, France
Found in 1994
Specimen size: 5.0 × 3.7 × 3.2 cm = ...
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