AM_Hercynite_26 Formula: (Al1.938 Mg.303 Fe.759) O4 Name: Hercynite Unit cell: 8.1406 8.1406 8.1406 90.0 90.0 90.0 , V=539.47 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: He8a/h