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Corkite: PbFe+++3(PO4)(SO4)(OH)6 Hinsdalite: (Pb,Sr)Al3(PO4)(SO4)(OH)6
Comments: Small brown rounded translucent crystals of corkite on darker brown botryoidal hinsdalite. Location: Grube Schone Aussicht, near Dernbach, Montabaur, Rheinland-Pflaz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species