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Smolianinovite: (Co,Ni,Mg,Ca)3(Fe+++,Al)2(AsO4)4·11(H2O)
Comments: Tan to brown smolianinovite pseudomorphs after cobaltite crystals, with erythrite and tarnished cobaltite. Location: Mount Cobalt, Cloncurry, Queensland, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species