A rare specimen of well-crystallized tetradymite, a sulfotelluride of bismuth, from its Central Slovakian type locality. A sizeable specimen of silicified andesite, whose cavities are sporadically covered on various sides by tetradymite crystals up to 1 mm in size. Dominating the cavity on the display side is a cluster of two two-millimeter, sharply defined, and undamaged tetradymite crystals. Both crystals are coated with a layer of yellow montanite, a rare tellurate of bismuth.
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Localities, Slovakia, Mineral Classification, Sulfides, Sulfates, Size, Medium, Type Localities
Tetradymite, montanite
$147.03
In stock
Location: Župkov; Slovensko [en]
