Information card for entry 9002745

Structure parameters

• Mineral name: Spinel
• Formula: Al2 Mg O4
• Calculated formula: Al2 Mg O4
• Title of publication: Kinetics of cation ordering in synthetic MgAl2O4 spinel Sample: annealed at 1000 deg C for 12h, then isothermally ordered at 800 deg C for 10 min
• Authors of publication: Andreozzi, G. B.; Princivalle, F.
• Journal of publication: American Mineralogist
• Year of publication: 2002
• Journal volume: 87
• Pages of publication: 838 - 844
• a: 8.084 Å
• b: 8.084 Å
• c: 8.084 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 528.298 ų
• Sample thermal history: annealed at 1000 deg C for 12h; isothermally ordered at 800 deg C for 10 min
• Number of distinct elements: 3
• 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