Information card for entry 1524786

Structure parameters

• Chemical name: Ca Mn11.62 Fe2.38 Si O24
• Mineral name: Braunite
• Formula: Ca Fe2.38 Mn11.62 O24 Si
• Calculated formula: Ca Fe2.38 Mn11.62 O24 Si
• Title of publication: The crystal structure of Braunite II and its relation to Bixbyite and Braunite
• Authors of publication: de Villiers, J.P.R.
• Journal of publication: American Mineralogist
• Year of publication: 1980
• Journal volume: 65
• Pages of publication: 756 - 765
• a: 9.431 Å
• b: 9.431 Å
• c: 37.774 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 3359.76 ų
• Number of distinct elements: 5
• 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