Information card for entry 9001349

Structure parameters

• Mineral name: Biotite
• Formula: Al1.282 Ca0.013 Cr0.072 Fe0.504 K0.955 Mg1.899 Mn0.027 Na0.03 O12 Si2.868 Ti0.324
• Calculated formula: Al1.282 Ca0.013 Cr0.072 Fe0.504 K0.955 Mg1.899 Mn0.027 Na0.03 O12 Si2.868 Ti0.324
• Title of publication: Effect of Ti substitution in biotite-M crystal chemistry Sample 11 from a lamproite rock, Jummilla, Spain
• Authors of publication: Brigatti, M. F.; Galli, E.; Poppi, L.
• Journal of publication: American Mineralogist
• Year of publication: 1991
• Journal volume: 76
• Pages of publication: 1174 - 1183
• a: 5.315 Å
• b: 9.204 Å
• c: 10.168 Å
• α: 90°
• β: 100.13°
• γ: 90°
• Cell volume: 489.657 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