Information card for entry 9007233

Structure parameters

• Mineral name: Spinel
• Formula: Al1.917 Fe0.08 Mg0.991 O4
• Calculated formula: Al1.917 Fe0.08 Mg0.991 O4
• Title of publication: How Cr3+ and Fe3+ affect Mg-Al order-disorder transformation at high temperature in natural spinels Sample: L-Fe, 3rd run, T = 550 C
• Authors of publication: Martignago, F.; Dal Negro, A.; Carbonin, S.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 2003
• Journal volume: 30
• Pages of publication: 401 - 408
• a: 8.1359 Å
• b: 8.1359 Å
• c: 8.1359 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 538.539 ų
• Ambient diffraction temperature: 823.15 K
• Number of distinct elements: 4
• Space group number: 227
• Hermann-Mauguin space group symbol: F d -3 m :2
• Hall space group symbol: -F 4vw 2vw 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No