AM_Spinel_411 Formula: Al1.775 Fe.218 Mg.808 Si.002 Zn.002 Cr.125 Ni.008 Ti.004 O4 Name: Spinel Unit cell: 8.1166 8.1166 8.1166 90.0 90.0 90.0 , V=534.72 Space group: FD3M (227)

Menegazzo G , Carbonin S , Physics and Chemistry of Minerals , 25 (1998) p.541-547, Oxidation mechanisms in Al-Mg-Fe spinels., A second stage: alpha-Fe2O3 exsolution, Sample: LE20A4, quenched from T = 1150 C after 5.5 hours