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 = 900 C, Sample HCl/2 _database_code_amcsd 0006510 8.1516 8.1516 8.1516 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .808 .58 Al .125 .125 .125 .192 .58 Fe .5 .5 .5 .096 .50 Al .5 .5 .5 .904 .50 O .2638 .2638 .2638 1.04