AM_Spinel_391 Formula: Mg.68 Al1.152 Fe.45 Mn.005 Si.001 Cr.694 Ni.005 Ti.009 V.004 O4 Name: Spinel Unit cell: 8.2201 8.2201 8.2201 90.0 90.0 90.0 , V=555.43 Space group: FD3M (227)

Carraro A , European Journal of Mineralogy , 15 (2003) p.681-688, Crystal chemistry of Cr-spinels from a suite of spinel peridotite mantle, xenoliths from the Predazzo Area (Dolomites, Northern Italy), Sample: M2SP1, Locality: Predazzo area, Dolomites, Northern Italy