Information card for entry 9003898

Structure parameters

• Mineral name: Spinel
• Formula: Al1.8 Fe0.2 Mg0.997 O4
• Calculated formula: Al1.8 Fe0.2 Mg0.997 O4
• Title of publication: Thermodynamics and kinetics of cation ordering in natural and synthetic Mg(Al,Fe3+)2O4 spinels from in situ high-temperature X-ray diffraction Sample: MgFe20, T = 500 C
• Authors of publication: Martignago, F.; Andreozzi, G. B.; Dal Negro, A.
• Journal of publication: American Mineralogist
• Year of publication: 2006
• Journal volume: 91
• Pages of publication: 306 - 312
• a: 8.1482 Å
• b: 8.1482 Å
• c: 8.1482 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 540.985 ų
• Ambient diffraction temperature: 773.15 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