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Phurcalite: Ca2(UO2)3O2(PO4)2·7(H2O)
Comments: Yellow phurcalite crystals on white aragonite. Location: Posey Mine, White Canyon District, San Juan County, Utah, USA. Scale: Picture site 0.5 cm. © Paul M. Schumacher
Comments: Coatings of minute acicular phurcalite crystals on sandstone. Location: Posey Mine, Red Canyon, White Canyon District, San Juan County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Bright canary yellow acicular phurcalite crystals to about 0.25mm. Seems to have overgrown perhaps torbernite and individual groups are to 1mm. Location: El Azul mine, Los Azules district, Copiapo Province, Atacama, Chile. Scale: Picture Size 5 mm. © Tom Loomis / Dakota Matrix