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 = 1050 C _database_code_amcsd 0004043 8.1841 8.1841 8.1841 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .678 .0168 AlT .125 .125 .125 .262 .0168 FeT .125 .125 .125 .060 .0168 AlM .5 .5 .5 .7905 .0168 MgM .5 .5 .5 .1695 .0168 FeM .5 .5 .5 .040 .0168 O .26098 .26098 .26098 .0218