Spinel
Redfern S A T, Harrison R J, O'Neill H St C, Wood D R R
American Mineralogist 84 (1999) 299-310
Thermodynamics and kinetics of cation ordering in MgAl2O4 spinel up to 1600 C
from in situ neutron diffraction
Data collected at IPNS, Argonne National Laboratory,
T = 1088 K on cooling cycle, MgAl2O4
_database_code_amcsd 0002133
8.13777 8.13777 8.13777 90 90 90 *Fd3m
.125 .125 .125
atom       x       y       z  occ  Biso
Mg      .125    .125    .125  .801 1.168
Al      .125    .125    .125  .199 1.168
Al        .5      .5      .5 .9005 1.017
Mg        .5      .5      .5 .0995 1.017
O    .261430 .261430 .261430       1.228