Spinel
Menegazzo G, Carbonin S
Physics and Chemistry of Minerals 25 (1998) 541-547
Oxidation mechanisms in Al-Mg-Fe spinels.
A second stage: alpha-Fe2O3 exsolution
Sample: LE20A5, quenched from T = 1150 C after 30.5 hours
_database_code_amcsd 0008161
8.1142 8.1142 8.1142 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z   occ  Uiso
AlT     .125   .125   .125 .2527 .0085
FeT2+   .125   .125   .125 .0035 .0085
FeT3+   .125   .125   .125 .1400 .0085
MgT     .125   .125   .125 .5850 .0085
MnT     .125   .125   .125 .0001 .0085
SiT     .125   .125   .125 .0014 .0085
ZnT     .125   .125   .125 .0023 .0085
AlM       .5     .5     .5 .7592 .0083
FeM2+     .5     .5     .5 .0033 .0083
FeM3+     .5     .5     .5 .0359 .0083
MgM       .5     .5     .5 .1114 .0083
CrM       .5     .5     .5 .0624 .0083
NiM       .5     .5     .5 .0043 .0083
TiM       .5     .5     .5 .0019 .0083
O     .26078 .26078 .26078       .0126