Information card for entry 9004519

Structure parameters

• Mineral name: Nacaphite
• Formula: Ca5 F5 Na10 O20 P5
• Calculated formula: Ca4.99995 F5 Na10 O20 P5
• Title of publication: Modular approach in solving the crystal structure of a synthetic dimorph of nacaphite, Na2Ca[PO4]F, from powder-diffraction data
• Authors of publication: Sokolova, E. V.; Kabalov, Y. K.; Ferraris, G.; Schneider, J.; Khomyakov, A. P.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1999
• Journal volume: 37
• Pages of publication: 83 - 90
• a: 7.0179 Å
• b: 7.0179 Å
• c: 40.56 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1729.99 ų
• Number of distinct elements: 5
• 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