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Cornubite: Cu5(AsO4)2(OH)4 Conichalcite: CaCu(AsO4)(OH)
Comments: Blue green crystalline cornubite alteration of enargite with green conichalcite in white calcite. Location: Lime Bluff Quarry, Lycoming County, Pennsylvania, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species