AM_Spinel_406 Formula: Al1.84 Fe.213 Mg.776 Si.003 Zn.007 Cr.078 Ni.014 O4 Name: Spinel Unit cell: 8.1082 8.1082 8.1082 90.0 90.0 90.0 , V=533.06 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: TS11B5, quenched from T = 1150 C after 49 hours