AM_Spinel_407 Formula: Al1.838 Fe.216 Mg.776 Si.002 Zn.007 Cr.078 Ni.014 O4 Name: Spinel Unit cell: 8.106 8.106 8.106 90.0 90.0 90.0 , V=532.62 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: TS11B6, quenched from T = 1150 C after 202 hours