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 550 C Annealing time = 0 min _database_code_amcsd 0019310 8.1706 8.1706 8.1706 90 90 90 *Fd3m .125 .125 .125 atom x y z occ AlM .5 .5 .5 .659 MgM .5 .5 .5 .192 Fe3+M .5 .5 .5 .148 MgT .125 .125 .125 .617 AlT .125 .125 .125 .141 Fe3+T .125 .125 .125 .242 O .26067 .26067 .26067