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 = 293 K _database_code_amcsd 0001398 8.08435 8.08435 8.08435 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Mg .125 .125 .125 .68 .24 Al .125 .125 .125 .32 .24 Al .5 .5 .5 .84 .70 Mg .5 .5 .5 .16 .70 O .26148 .26148 .26148 .53