AM_Spinel_226 Formula: Mg.999 Al1.801 Fe.199 O4 Name: Spinel Unit cell: 8.152 8.152 8.152 90.0 90.0 90.0 , V=541.74 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: synthetic, Sample: MgFe20, T = 550 C