Mineralogy Database

Wohlerite Biotite Image

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 Wohlerite, Biotite

Large Wohlerite Image

Mineral: Wohlerite: NaCa2(Zr,Nb)Si2O7(O,OH,F)2  
Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2
Comments: Prismatic wohlerite crystals with lepidomelane (Fe-rich biotite).
Location: Langevannet, Tvedalen, Telemark, Norway.
Scale: See Photo.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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