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 = 673 K _database_code_amcsd 0002033 8.16949 8.16949 8.16949 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .866 1.147 Al .125 .125 .125 .134 1.147 Fe .5 .5 .5 .067 .744 Al .5 .5 .5 .933 .744 O .264223 .264223 .264223 1.203