Mineral: Siderite
Locality: Allevard, Haut-Grésivaudan, Grenoble, Isère, Auvergne-Rhône-Alpes, France
Dimensions: 8.0 x 6.6 x 4.0 cm
Description: Classic specimen of sharp greenish-brown siderite rhombs to 3.1 cm from the historic French location.
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