AM_Spinel_254 Formula: Mg.991 Al1.928 Fe.074 O4 Name: Spinel Unit cell: 8.134 8.134 8.134 90.0 90.0 90.0 , V=538.16 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 = 600 C