Information card for entry 9011749

Structure parameters

• Mineral name: Fermorite
• Formula: As1.47 Ca4.2 F0.345 H1.31 O13.31 P1.44 Sr0.8
• Calculated formula: As1.47 Ca4.2 F0.345 H1.31 O13.31 P1.44 Sr0.8
• Title of publication: Cation substitution in the apatite tetrahedral site: crystal structures of type hydroxylellestadtite and type fermorite
• Authors of publication: Hughes, J. M.; Drexler, J. W.
• Journal of publication: Neues Jahrbuch fur Mineralogie, Monatshefte
• Year of publication: 1991
• Journal volume: 1991
• Pages of publication: 327 - 336
• a: 9.5935 Å
• b: 9.5966 Å
• c: 6.9754 Å
• α: 90°
• β: 90°
• γ: 119.971°
• Cell volume: 556.315 ų
• Number of distinct elements: 7
• Space group number: 11
• Hermann-Mauguin space group symbol: P 1 1 21/m
• Hall space group symbol: -P 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No