Spinel Princivalle F, Martignago F, Nestola F, Dal Negro A European Journal of Mineralogy 24 (2012) 633-643 Kinetics of cation ordering in synthetic Mg(Al,Fe3+)2O4 spinels Note Sample F54, disordered at 1000 C for 24 h, then ordered at 650 C Annealing time = 93 min _database_code_amcsd 0019328 8.1690 8.1690 8.1690 90 90 90 *Fd3m .125 .125 .125 atom x y z occ AlM .5 .5 .5 .664 MgM .5 .5 .5 .192 Fe3+M .5 .5 .5 .144 MgT .125 .125 .125 .616 AlT .125 .125 .125 .134 Fe3+T .125 .125 .125 .249 O .26073 .26073 .26073