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Radioactive Metaheinrichite

Radioactive Metaheinrichite. Photo: Mintreasure.com

Plenty of beautiful tabular yellow crystals of rare metaheinrichite on matrix from the famed Schmiedestollen-dump, the type locality for the species. Metaheinrichite is strongly radioactive and will fluoresce a bright green to yellow-green under short-wave and long-wave ultraviolet light.

Locality: Schmiedestollen, Wittichen, Black Forest, Baden-Württemberg, Germany

Chemical Formula: Ba(UO₂)₂(AsO₄)₂·8H₂O
Crystal System Monoclinic
Crystal Habit Scaly
Cleavage Perfect, Distinct, None
Luster Vitreous - Pearly
Color yellowish green
Streak yellowish white

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