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