Information card for entry 1572528

Structure parameters

• Formula: Ca26.83 Fe1.01 Mg3 Na0 Ni0 O84 P21
• Calculated formula: Ca8.946 Fe0.338 Mg O28 P7
• Title of publication: Karwowskiite, Ca9(Fe2+0.5□ 0.5)Mg(PO4)7—A New Merrillite Group Mineral from Paralava of the Hatrurim Complex, Daba-Siwaqa, Jordan
• Authors of publication: Galuskin, Evgeny V.; Galuskina, Irina O.; Kusz, Joachim; Książek, Maria; Vapnik, Yevgeny; Zieliński, Grzegorz
• Journal of publication: Minerals
• Year of publication: 2024
• Journal volume: 14
• Journal issue: 8
• Pages of publication: 825
• a: 10.3375 ± 0.0002 Å
• b: 10.3375 ± 0.0002 Å
• c: 37.1443 ± 0.0009 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 3437.59 ± 0.13 ų
• Cell temperature: 296 ± 1 K
• Ambient diffraction temperature: 296 ± 2 K
• Number of distinct elements: 7
• Space group number: 161
• Hermann-Mauguin space group symbol: R 3 c :H
• Hall space group symbol: R 3 -2"c
• Residual factor for all reflections: 0.0217
• Residual factor for significantly intense reflections: 0.0212
• Weighted residual factors for significantly intense reflections: 0.0535
• Weighted residual factors for all reflections included in the refinement: 0.054
• Goodness-of-fit parameter for all reflections included in the refinement: 1.086
• Diffraction radiation wavelength: 1.54184 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No