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 = 1441 K on heating cycle, Mg.99Al2O4
_database_code_amcsd 0002176
8.17306 8.17306 8.17306 90 90 90 *Fd3m
.125 .125 .125
atom       x       y       z   occ  Biso
Mg      .125    .125    .125  .717 1.547
Al      .125    .125    .125  .283 1.547
Al        .5      .5      .5 .8585 1.303
Mg        .5      .5      .5 .1415 1.303
O    .260465 .260465 .260465       1.682