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 = 550 C
_database_code_amcsd 0004050
8.1292 8.1292 8.1292 90 90 90 *Fd3m
.125 .125 .125
atom      x      y      z   occ  Uiso
MgT    .125   .125   .125  .714 .0104
AlT    .125   .125   .125  .250 .0104
FeT    .125   .125   .125  .029 .0104
AlM      .5     .5     .5 .8395 .0109
MgM      .5     .5     .5  .138 .0109
FeM      .5     .5     .5 .0225 .0109
O    .26160 .26160 .26160       .0143