Hercynite Larsson L, O'Neill H St C, Annersten H European Journal of Mineralogy 6 (1994) 39-51 Crystal chemistry of synthetic hercynite (FeAl2O4) from XRD structural refinements and Mossbauer spectroscopy Sample: T = 700 C, Sample HCl/1 _database_code_amcsd 0006509 8.1517 8.1517 8.1517 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .855 .56 Al .125 .125 .125 .145 .56 Fe .5 .5 .5 .0725 .48 Al .5 .5 .5 .9275 .48 O .2645 .2645 .2645 .90