Information card for entry 1519938

Structure parameters

• Common name: mosandrite
• Mineral name: mosandrite
• Formula: Ca3.5 Ce H10 O20 Si4 Ti
• Calculated formula: Ca0.4 Ce0.0742 F H7.5 Na0.17 O19 Si4 Ti1.024 Y3.114
• Title of publication: From structure topology to chemical composition. XIV. Titanium silicates: refinement of the crystal structure and revision of the chemical formula of mosandrite, (Ca~3~REE)[(H~2~O)~2~Ca~0.5\σquare 0.5~]Ti(Si~2~O~7~)2~(OH)~2~(H~2~O)~2~, a Group-I mineral from the Saga mine, Morje, Porsgrunn, Norway
• Authors of publication: Sokolova, E.; Hawthorne, F. C.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2013
• Journal volume: 77
• Journal issue: 6
• Pages of publication: 2753 - 2771
• a: 7.4222 ± 0.0003 Å
• b: 5.6178 ± 0.0002 Å
• c: 18.7232 ± 0.0007 Å
• α: 90°
• β: 101.423 ± 0.0006°
• γ: 90°
• Cell volume: 765.23 ± 0.05 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 6
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Residual factor for all reflections: 0.0384
• Residual factor for significantly intense reflections: 0.0369
• Weighted residual factors for significantly intense reflections: 0.1115
• Weighted residual factors for all reflections included in the refinement: 0.1128
• Goodness-of-fit parameter for all reflections included in the refinement: 1.164
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes