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MD-137944
Thorianite
Thumbnail, 7.5 mm
Andranondambo phlogopite deposit, Maromby Commune, Amboasary District, Anosy (Fort Dauphin) Region, Tulear (Toliara) Province, Madagascar
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7.5mm x 6mm x 5mmA crystal of the rare thorium mineral thorianite (thorium oxide, with the simple formula of ThO2) – from a find in the early 70’s in Madagascar. You just do not see these around on the market...in fact, how often do you see ANY thorium mineral?