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 = 60 min _database_code_amcsd 0019272 8.1468 8.1468 8.1468 90 90 90 *Fd3m .125 .125 .125 atom x y z occ AlM .5 .5 .5 .715 MgM .5 .5 .5 .178 Fe3+M .5 .5 .5 .106 MgT .125 .125 .125 .644 AlT .125 .125 .125 .180 Fe3+T .125 .125 .125 .176 O .26090 .26090 .26090