Information card for entry 9004386

Structure parameters

• Mineral name: Cuspidine
• Formula: Ca2 F2 Lu Na O7 Si2
• Calculated formula: Ca2 F2 Lu Na O7 Si2
• Title of publication: The structure of NaCa2LuSi2O7F2, a synthetic phase of the cuspidine group
• Authors of publication: Fleet, M. E.; Pan, Y.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1995
• Journal volume: 33
• Pages of publication: 879 - 884
• a: 11.024 Å
• b: 10.303 Å
• c: 7.391 Å
• α: 90°
• β: 109.4°
• γ: 90°
• Cell volume: 791.809 ų
• Number of distinct elements: 6
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/a 1
• Hall space group symbol: -P 2yab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No