Spinel
Martignago F, Andreozzi G B, Dal Negro A
American Mineralogist 91 (2006) 306-312
Thermodynamics and kinetics of cation ordering in natural and synthetic
Mg(Al,Fe3+)2O4 spinels from in situ high-temperature X-ray diffraction
Locality: Shishimsk Mountains, Urals, Russia
Sample: 3dis, T = 400 C
_database_code_amcsd 0004047
8.1179 8.1179 8.1179 90 90 90 *Fd3m
.125 .125 .125
atom      x      y      z   occ  Uiso
MgT    .125   .125   .125  .710 .0084
AlT    .125   .125   .125  .254 .0084
FeT    .125   .125   .125  .028 .0084
AlM      .5     .5     .5  .835 .0090
MgM      .5     .5     .5 .1435 .0090
FeM      .5     .5     .5 .0255 .0090
O    .26154 .26154 .26154       .0123