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 F39, disordered at 1000 C for 24 h, then ordered at 550 C Annealing time = Untreated min _database_code_amcsd 0019270 8.1473 8.1473 8.1473 90 90 90 *Fd3m .125 .125 .125 atom x y z occ AlM .5 .5 .5 .728 MgM .5 .5 .5 .169 Fe3+M .5 .5 .5 .104 MgT .125 .125 .125 .662 AlT .125 .125 .125 .155 Fe3+T .125 .125 .125 .183 O .26119 .26119 .26119