AM_Franklinite_27 Formula: Zn.616 Mn.374 Mg.035 Al.034 Fe1.94 O4 Name: Franklinite Unit cell: 8.4654 8.4654 8.4654 90.0 90.0 90.0 , V=606.66 Space group: FD3M (227)

Lucchesi S , Russo U , Della Giusta A , European Journal of Mineralogy , 11 (1999) p.501-511, Cation distribution in natural Zn-spinels: franklinite, Sample: FRK2