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 = 1362 K on cooling cycle, Mg.99Al2O4 _database_code_amcsd 0002186 8.16703 8.16703 8.16703 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .720 1.397 Al .125 .125 .125 .280 1.397 Al .5 .5 .5 .860 1.202 Mg .5 .5 .5 .140 1.202 O .260656 .260656 .260656 1.591