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 = 500 C, Sample BG2/1 _database_code_amcsd 0006514 8.1513 8.1513 8.1513 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .899 .68 Al .125 .125 .125 .101 .68 Fe .5 .5 .5 .0505 .51 Al .5 .5 .5 .9495 .51 O .2654 .2654 .2654 .88