AM_Hercynite_24 Formula: (Al1.962 Mg.544 Fe.494) O4 Name: Hercynite Unit cell: 8.1221 8.1221 8.1221 90.0 90.0 90.0 , V=535.80 Space group: FD3M (227)

Andreozzi G B , Lucchesi S , American Mineralogist , 87 (2002) p.1113-1120, Intersite distribution of Fe2+ and Mg in the spinel (sensu stricto) -, hercynite series by single-crystal X-ray diffraction, Sample: He6a/e