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 = 1506 K on heating cycle, Mg.99Al2O4
_database_code_amcsd 0002177
8.17838 8.17838 8.17838 90 90 90 *Fd3m
.125 .125 .125
atom       x       y       z   occ  Biso
Mg      .125    .125    .125  .713 1.621
Al      .125    .125    .125  .287 1.621
Al        .5      .5      .5 .8565 1.353
Mg        .5      .5      .5 .1435 1.353
O    .260414 .260414 .260414       1.757