Hercynite Harrison R J, Redfern S A T, O'Neill H St C American Mineralogist 83 (1998) 1092-1099 The temperature dependence of the cation distribution in synthetic hercynite (FeAl2O4) from in-situ neutron structure refinements Sample at T = 723 K _database_code_amcsd 0002034 8.17298 8.17298 8.17298 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .867 1.219 Al .125 .125 .125 .133 1.219 Fe .5 .5 .5 .0665 .785 Al .5 .5 .5 .9335 .785 O .264210 .264210 .264210 1.246