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 = 1595 K on cooling cycle, MgAl2O4 _database_code_amcsd 0002126 8.17903 8.17903 8.17903 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .725 1.769 Al .125 .125 .125 .275 1.769 Al .5 .5 .5 .8625 1.490 Mg .5 .5 .5 .1375 1.490 O .260318 .260318 .260318 1.875