Information card for entry 9006544

Structure parameters

• Mineral name: Braunite
• Formula: Mn7 O12 Si
• Calculated formula: Mn7 O12 Si
• Title of publication: Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Sample: P = 2.66 GPa
• Authors of publication: Miletich, R.; Allan, D. R.; Angel, R. J.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 1998
• Journal volume: 25
• Pages of publication: 183 - 192
• a: 9.3786 Å
• b: 9.3786 Å
• c: 18.6234 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1638.08 ų
• Ambient diffracton pressure: 2660000 kPa
• Number of distinct elements: 3
• Space group number: 142
• Hermann-Mauguin space group symbol: I 41/a c d :2
• Hall space group symbol: -I 4bd 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No