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 = 1024 K on cooling cycle, MgAl2O4 _database_code_amcsd 0002134 8.13316 8.13316 8.13316 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .804 1.054 Al .125 .125 .125 .196 1.054 Al .5 .5 .5 .902 1.013 Mg .5 .5 .5 .098 1.013 O .261627 .261627 .261627 1.148