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 750 C Annealing time = 6 min _database_code_amcsd 0019339 8.1704 8.1704 8.1704 90 90 90 *Fd3m .125 .125 .125 atom x y z occ AlM .5 .5 .5 .668 MgM .5 .5 .5 .185 Fe3+M .5 .5 .5 .147 MgT .125 .125 .125 .632 AlT .125 .125 .125 .127 Fe3+T .125 .125 .125 .241 O .26087 .26087 .26087