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 ISIS, Rutherford Appleton Laboratory, U.K. T = 1473 K on heating cycle, MgAl2O4 _database_code_amcsd 0002154 8.17015 8.17015 8.17015 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .764 1.905 Al .125 .125 .125 .236 1.905 Al .5 .5 .5 .882 1.435 Mg .5 .5 .5 .118 1.435 O .260967 .260967 .260967 1.962