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 750 C
Annealing time = 30 min
_database_code_amcsd 0019342
8.1709 8.1709 8.1709 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z  occ
AlM       .5     .5     .5 .677
MgM       .5     .5     .5 .183
Fe3+M     .5     .5     .5 .141
MgT     .125   .125   .125 .638
AlT     .125   .125   .125 .114
Fe3+T   .125   .125   .125 .248
O     .26099 .26099 .26099