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Strakhovite: NaBa3(Mn++,Mn+++)4Si6O19(OH)3
Comments: Dark green vitreous massive strakhovite with inset image of sample. Location: Dzhavodi Area, Ir-Nimi manganese deposit, Taikan Ridge, Khabarovskiy Kray, Far-Eastern Region, Russia. Scale: See Image. © Rruff Database