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Novacekite: Mg(UO2)2(AsO4)2·12(H2O)
Comments: Scanner image of massive, yellow novacekite covering matrix. Location: Serra das Éguas,Bahia, Northeast Region, Brazil. Scale: Specimen size 4.1 cm. © Paul M. Schumacher
Novacekite: Mg(UO2)2(AsO4)2·12(H2O) Metanovacekite: Mg(UO2)2(AsO4)2·4-8(H2O)
Comments: Yellow, translucent platy novacekite/metanovacekite crystal aggregate. Location: Rabejac Mine, Olmet, Herault, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species