Images
Formula: CaMg(UO2)(CO3)3.12H2O
Hydrated carbonate, uranyl mineral
Crystal System: Monoclinic
Specific gravity: 2.3 measured, 2.32 calculated
Colour: Bright green, yellowish white (dehydrated)
Luminescence: Fluoresces bright green under short wave UV
Solubility: Soluble in water
Very strongly RADIOACTIVE
Environments
Localities
At the type locality, the Hillside Mine, Bozarth Mesa, Bagdad, Eureka Mining District, Yavapai County,
Arizona, USA, swartzite occurs as post-mining efflorescences on mine walls, as small vivid green
clusters on a layer of snow-white gypsum. Swartzite is a
secondary mineral in oxidised portions of the polymetallic
sulphide deposit, but the source of uranium is undetermined. Associated
minerals include gypsum,
schröckingerite,
andersonite and bayleyite
(HOM, Mindat).
Back to Minerals