Uranospinite, Zeunerite Ca(UO2)2(AsO4)2·10H2O,…

Uranospinite, Zeunerite

Ca(UO2)2(AsO4)2·10H2O,  Cu(UO2)2(AsO4)2·12H2O


Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy

Field of View: 2.4 mm

Lemon-yellow uranospinite with green epitaxial growth of zeunerite. 

Beppe Finello’s Photo

Uranospinite (also called calcium arsenuranite ) is a very rare mineral from the Autunite Group The name uranospinite has its origin in the uranium content and from Greek “spinos” for “siskin,”  which indicates the green colour. A secondary mineral occurring in the oxidized zone of arsenic-bearing and uranium-bearing hydrothermal deposits. Radioactive.

Zeunerite is a green copper uranium arsenate. It is an uncommon secondary mineral in the oxidized zone of arsenic-bearing hydrothermal uranium deposits. Radioactive.

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