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 = 1373 K _database_code_amcsd 0002047 8.22525 8.22525 8.22525 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .792 2.333 Al .125 .125 .125 .207 2.333 Fe .5 .5 .5 .1035 1.595 Al .5 .5 .5 .8965 1.595 O .263366 .263366 .263366 2.277