AM_Spinel_374 Formula: Mg.956 Fe.143 Mn.003 Al1.884 Si.002 Ti.011 O4 Name: Spinel Unit cell: 8.1077 8.1077 8.1077 90.0 90.0 90.0 , V=532.96 Space group: FD3M (227)

Lucchesi S , Amoriello M , Della Giusta A , European Journal of Mineralogy , 10 (1998) p.473-482, Crystal chemistry of spinels from xenoliths of the, Alban Hills volcanic region, Sample: SP268a, Locality: xenoliths of the Alban Hills, Italy volcanic region