Spinel Martignago F, Andreozzi G B, Dal Negro A American Mineralogist 91 (2006) 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: MgFe14, T = 650 C _database_code_amcsd 0004038 8.1529 8.1529 8.1529 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .750 .0116 AlT .125 .125 .125 .190 .0116 FeT .125 .125 .125 .060 .0116 AlM .5 .5 .5 .827 .0111 MgM .5 .5 .5 .1315 .0111 FeM .5 .5 .5 .0415 .0111 O .26198 .26198 .26198 .0145