Information card for entry 9016013

Structure parameters

• Mineral name: Brownmillerite
• Formula: Ca2 Fe2 O5
• Calculated formula: Ca8 Fe8 O20
• Title of publication: The effect of oxygen vacancies and aluminium substitution on the high-pressure properties of brownmillerite-structured Ca2Fe2-xAlxO5 Note: x = 0.0 Note: P = 0.0001 GPa
• Authors of publication: Vanpeteghem, C. B.; Angel, R. J.; Zhao, J.; Ross, N. L.; Redhammer, G. J.; Seifert, F.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 2008
• Journal volume: 35
• Pages of publication: 493 - 504
• a: 5.4271 Å
• b: 14.7619 Å
• c: 5.5978 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 448.464 ų
• Number of distinct elements: 3
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No