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 = 200 C _database_code_amcsd 0004032 8.1184 8.1184 8.1184 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .732 .0055 AlT .125 .125 .125 .205 .0055 FeT .125 .125 .125 .062 .0055 AlM .5 .5 .5 .8195 .0058 MgM .5 .5 .5 .140 .0058 FeM .5 .5 .5 .0405 .0058 O .26177 .26177 .26177 .0088