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Large Johninnesite Image

Mineral: Johninnesite: Na2Mg4Mn++12(AsO4)2(Si12O35)(OH)6
Comments: Orange crystalline vein of johninnesite in manganese oxide matrix.
Location: Ausserferrera, Val Ferrera, Graubundun, Switzerland.
Scale: See Photo.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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