| CaCu5(AsO4)2(CO3)(OH)4.6H2O
This sample of tyrolite is displayed in the Smithsonian Museum of Natural History. Tyrolite is an carbonate mineral of copper and arsenic. It has the composition CaCu5(AsO4)2(CO3)(OH)4.6H2O. This sample is about 8x16 cm and is from Brixlegg, Tyrol, Austria.
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