Information card for entry 9013161

Structure parameters

• Mineral name: Magnesium astrophyllite
• Formula: Fe4 H4 K2 Mg2 Na2 O30 Si8 Ti2
• Calculated formula: Fe4 H4 K2 Mg2 Na2 O30 Si8 Ti2
• Title of publication: Structure Refinement of Monoclinic Astrophyllite
• Authors of publication: Shi, N.; Ma, Z.; Li, G.; Yamnova, M. A.; Pushcharovsky, D. Y.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 1998
• Journal volume: 54
• Journal issue: 2
• Pages of publication: 109 - 114
• a: 10.37 Å
• b: 23.129 Å
• c: 5.322 Å
• α: 90°
• β: 99.55°
• γ: 90°
• Cell volume: 1258.78 ų
• Cell temperature: 298 K
• Number of distinct elements: 8
• Space group number: 5
• Hermann-Mauguin space group symbol: A 1 2 1
• Hall space group symbol: A 2y
• Residual factor for significantly intense reflections: 0.057
• Weighted residual factors for all reflections included in the refinement: 0.154
• Goodness-of-fit parameter for all reflections included in the refinement: 0.819
• Diffraction radiation wavelength: 0.71069 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No