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Fenaksite: (K,Na,Ca)4(Fe++,Fe+++,Mn)2Si8O20(OH,F)
Comments: Tan to rose colored crystalline fenaksite with dark green-black crystalline pyroxene. Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species