Spinel Peterson R C, Lager G A, Hitterman R L American Mineralogist 76 (1991) 1455-1458 A time-of-flight neutron powder diffraction study of MgAl2O4 at temperatures up to 1273 K sample W, T = 973 K _database_code_amcsd 0001402 8.13219 8.13219 8.13219 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .75 .97 Al .125 .125 .125 .25 .97 Al .5 .5 .5 .88 1.21 Mg .5 .5 .5 .12 1.21 O .26186 .26186 .26186 1.09