Information card for entry 9002305

Structure parameters

• Mineral name: Biotite
• Formula: Al1.84 Ba0.02 Ca0.02 Fe1.54 H1.6 K0.96 Mg0.7 Na0.03 O12 Si2.64 Ti0.2
• Calculated formula: Al1.84 Ba0.02 Ca0.02 Fe1.54 H1.6 K0.96 Mg0.7 Na0.03 O12 Si2.64 Ti0.2
• Title of publication: Crystal chemistry of Al-rich biotites coexisting with muscovites in peraluminous granites Sample: C3-31
• Authors of publication: Brigatti, M. F.; Frigieri, P.; Ghezzo c; Poppi, L.
• Journal of publication: American Mineralogist
• Year of publication: 2000
• Journal volume: 85
• Pages of publication: 436 - 448
• a: 5.347 Å
• b: 9.257 Å
• c: 10.211 Å
• α: 90°
• β: 100.27°
• γ: 90°
• Cell volume: 497.318 ų
• Number of distinct elements: 11
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No