Mineral: Quartz with Siderite
Locality: Mésage Mine, Saint-Pierre-de-Mésage, Vizille, Grenoble, Isère, Auvergne-Rhône-Alpes, France
Dimensions: 7.2 × 5.6 × 6.1 cm

Description: Vizille is a classic French mineral locality where many alpine quartzes and very good (and very large) siderites have been found. I really like that Quartz, alone and tall in the middle of the piece, and because the specimen is a floater, with a single large Siderite crystal in which are the Quartz and a second generation of siderites, with smaller and lighter colored crystals.

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