AM_Hercynite_50 Formula: (Fe Al2) O4 Name: Hercynite Unit cell: 8.1522 8.1522 8.1522 90.0 90.0 90.0 , V=541.78 Space group: FD3M (227)

Larsson L , O Neill H St C , Annersten H , European Journal of Mineralogy , 6 (1994) p.39-51, Crystal chemistry of synthetic hercynite (FeAl2O4), from XRD structural refinements and Mossbauer spectroscopy, Sample: T = 900 C, Sample BG2/1