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Povondraite Image

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 Povondraite

Large Povondraite Image

Mineral: Povondraite: (Na,K)(Fe+++,Fe++)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4
Comments: Deep greenish black povondraite crystals.
Location: Malacacheta, Minas Gerais, Brazil.
Scale: See Photo.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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