Biotite Mineral Gallery

Biotite Minerals

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Biotite Mineral Gallery With 4 Images

Biotite Image

Images:

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2

Comments: Brown book of pseudohexagonal biotite crystals in matrix.
Location: Sattleberg, Laacher See, Rhineland-Palatinate, Germany. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Biotite Image

Images:

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2

Comments: Sharp hexagonal plates of dark brown biotite to 2.5 cm. across, with white albite.
Location: Brazil. Scale: 6.9x5.5x3 cm.
© Richard Dale / Dale Minerals

Biotite Image

Images:

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2
Anthophyllite: [ ]Mg7Si8O22(OH)2

Comments: Fibrous mass of anthophyllite as a shell around biotite.
Location: Hermanov, Severocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biotite Image

Images:

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2
Wohlerite: NaCa2(Zr,Nb)Si2O7(O,OH,F)2

Comments: Prismatic wohlerite crystals with lepidomelane (Fe-rich biotite).
Location: Langevannet, Tvedalen, Telemark, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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