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 = 710 K on cooling cycle, MgAl2O4 _database_code_amcsd 0002139 8.11057 8.11057 8.11057 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .860 .688 Al .125 .125 .125 .140 .688 Al .5 .5 .5 .930 .653 Mg .5 .5 .5 .070 .653 O .262098 .262098 .262098 .789