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 = 5340 min
_database_code_amcsd 0019315
8.1684 8.1684 8.1684 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z  occ
AlM       .5     .5     .5 .665
MgM       .5     .5     .5 .198
Fe3+M     .5     .5     .5 .137
MgT     .125   .125   .125 .606
AlT     .125   .125   .125 .129
Fe3+T   .125   .125   .125 .265
O     .26070 .26070 .26070