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Coquimbite: Fe+++2(SO4)3·9(H2O)
Comments: Brownish yellow tabular crystals of coquimbite. Location: Lavender Pit, Bisbee, Cochise County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Coquimbite: Fe+++2(SO4)3·9(H2O) Goldichite: KFe+++(SO4)2·4(H2O) Ferricopiapite: Fe+++2/3Fe+++4(SO4)6(OH)2·20(H2O)
Comments: Prismatic to fibrous crystals of goldichite on white massive coquimbite with yellow ferricopiapite. Location: Dexter No. 7 Mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Coquimbite rosettes (small bumps) secondarily nucleated on a cryptocrystalline mass. AmMin, v90, p1734. Location: Vents associated with underground coal fires in the Wuda coal bed of Inner Mongolia. Scale: See Image. © American Mineralogist