AM_Franklinite_26
Formula: Mn.339 Fe2.266 Zn.298 Mg.019 Al.057 Ti.025 O4
Name: Franklinite
Unit cell: 8.4576 8.4576 8.4576 90.0 90.0 90.0 , V=604.98
Space group: FD3M (227)

Lucchesi S , Russo U , Della Giusta A , European Journal of Mineralogy , 9 (1997) p.31-42, Crystal chemistry and cation distribution in some, Mn-rich natural and synthetic spinels, Sample: FRK1b