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: LE20A4, quenched from T = 1150 C after 5.5 hours
_database_code_amcsd 0008160
8.1166 8.1166 8.1166 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z   occ  Uiso
AlT     .125   .125   .125 .2288 .0096
FeT2+   .125   .125   .125 .0023 .0096
FeT3+   .125   .125   .125 .1568 .0096
MgT     .125   .125   .125 .5871 .0096
MnT     .125   .125   .125 .0001 .0096
SiT     .125   .125   .125 .0015 .0096
ZnT     .125   .125   .125 .0018 .0096
AlM       .5     .5     .5 .7733 .0091
FeM2+     .5     .5     .5 .0039 .0091
FeM3+     .5     .5     .5 .0256 .0091
MgM       .5     .5     .5 .1106 .0091
CrM       .5     .5     .5 .0623 .0091
NiM       .5     .5     .5 .0041 .0091
TiM       .5     .5     .5 .0019 .0091
O     .26111 .26111 .26111       .0136