AM_Spinel_251 Formula: Mg.989 Al1.924 Fe.079 O4 Name: Spinel Unit cell: 8.1219 8.1219 8.1219 90.0 90.0 90.0 , V=535.76 Space group: FD3M (227)

Martignago F , Andreozzi G B , Dal Negro A , American Mineralogist , 91 (2006) p.306-312, Thermodynamics and kinetics of cation ordering in natural and synthetic, Mg(Al,Fe3+)2O4 spinels from in situ high-temperature X-ray diffraction, Locality: Shishimsk Mountains, Urals, Russia, Sample: 3dis, T = 450 C