Information card for entry 9015599

Structure parameters

• Mineral name: Fluor-dravite
• Formula: Al5.47 B3 Ca0.35 F0.44 Fe1.1 H3.21 Li0.039 Mg2.35 Na0.55 O30.56 Si5.98 Ti0.05
• Calculated formula: Al16.4106 B9 Ca1.05 F1.32 Fe3.3003 H9 Li0.117 Mg7.0506 Na1.65 O91.68 Si17.9406 Ti0.1494
• Title of publication: Ordering of Fe and Mg in the tourmaline crystal structure: The correct formula Sample: Dravite 32008
• Authors of publication: Grice, J. D.; Ercit, T. S.
• Journal of publication: Neues Jahrbuch fur Mineralogie, Abhandlungen
• Year of publication: 1993
• Journal volume: 165
• Pages of publication: 245 - 266
• a: 15.981 Å
• b: 15.981 Å
• c: 7.21 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1594.68 ų
• Number of distinct elements: 12
• Space group number: 160
• Hermann-Mauguin space group symbol: R 3 m :H
• Hall space group symbol: R 3 -2"
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No