Information card for entry 1544684

Structure parameters

• Common name: 8(Fe0.625Mg0.375)O*2Fe2O3*2B2O3
• Mineral name: vonsenite
• Formula: B4 Fe9 Mg3 O20
• Calculated formula: B4 Fe12 O20
• Title of publication: The crystal structure of vonsenite
• Authors of publication: Takeuchi, Y.
• Journal of publication: Mineralogical Journal
• Year of publication: 1956
• Journal volume: 2
• Pages of publication: 19 - 26
• a: 9.73 Å
• b: 12.357 Å
• c: 3.055 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 367.314 ų
• Number of distinct elements: 4
• Space group number: 55
• Hermann-Mauguin space group symbol: P b a m
• Hall space group symbol: -P 2 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No