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Flinkite: Mn++2Mn+++(AsO4)(OH)4 Jarosewichite: Mn++3Mn+++(AsO4)(OH)6
Comments: Radial divergent spray of thick prismatic jarosewichite crystals with bladed flinkite crystals. (AmMin, v67:1043). Location: Franklin mine, Franklin, SussexC ounty, New Jersey, USA. Scale: Scale Bar 100 µm. © American Mineralogist