Dragon Minerals - November 24, 2024 Update

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36020: Corundum (three specimens) - $10
Bozeman Corundum Co. Mine, Gallatin Gateway, Gallatin County, Montana
Two thumbnails (2.1 and 1.3 cm) and one miniature (3.0 cm)
30 grams total weight
Specimen status: Reserved
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Three corundum specimens, two on a gneiss matrix and one crystal free of matrix. The two on matrix show different corundum morphologies: one prismatic and the other more of a stack of tabular crystals.The crystals are an opaque grey blue so maybe you might call them sapphire. The two smallest would fit into standard 'Perkie' thumbnail boxes. Very typical for the species/locality.




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