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Tokkoite Charoite Image

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 Tokkoite, Charoite

Large Tokkoite Image

Mineral: Tokkoite: K2Ca4[Si7O18(OH)](F,OH)  
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)ยท3(H2O)
Comments: Yellow crystalline tokkoite intermixed with purple charoite (viewed cross-sectional to fiber direction).
Location: Murun, Aldan, Republic of Sakha, Siberia, Russia.
Scale: See Photo.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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