Biotite Structure Data

Biotite Structure Data
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Biotite

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Biotite_26
Formula: Si2.64 Al1.84 Fe1.54 Mg.7 Ti.2 Na.03 (K.96 Ca.02 Ba.02) O12 H.32
Name: Biotite
Unit cell: 5.347 9.257 10.211 90.0 100.27 90.0 , V=497.32
Space group: C12/M1 (12)

Brigatti M F , Frigieri P , Ghezzo c , Poppi L , American Mineralogist , 85 (2000) p.436-448, Crystal chemistry of Al-rich biotites coexisting with muscovites in, peraluminous granites, Sample: C3-31

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