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 650 C
Annealing time = 45 min
_database_code_amcsd 0019288
8.1462 8.1462 8.1462 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z  occ
AlM       .5     .5     .5 .716
MgM       .5     .5     .5 .181
Fe3+M     .5     .5     .5 .103
MgT     .125   .125   .125 .639
AlT     .125   .125   .125 .177
Fe3+T   .125   .125   .125 .184
O     .26090 .26090 .26090