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 = 850 C, Sample BG2/1 _database_code_amcsd 0006522 8.1522 8.1522 8.1522 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Fe .125 .125 .125 .821 .53 Al .125 .125 .125 .179 .53 Fe .5 .5 .5 .0895 .43 Al .5 .5 .5 .9105 .43 O .2641 .2641 .2641 .94