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Hyttsjoite: Pb18Ba2Ca5Mn++2Fe+++2Si30O90Cl·6(H2O)
Comments: B&W image of hyttsjoite (Hy) with quartz (Q), melanotekite (M), andradite (A), and a mixture of a mineral resembling talc with unidentified phases (T). Location: Langban mines, Filipstad district, Varmland, Sweden (AmMin, v81:743). Scale: See Image. © American Mineralogist