... Xanh blue CoAl2O4 Nâu NiFe2O4 blue-ray Co2SnO2 Nâu (Zn, Fe)Fe2O4 Xanh blue (Co, Zn) Al2O4 Nâu (Fe, Mn)(Fe, Cr, Mn)2O4 Xanh blue-green Co(Al, Cr)O4 ... Spinen (MgAl2O4 ), Gahnite (ZnAl2O4 ), Hercynite (FeAl2O4 ), Cuprospinen CuFe2O4 ), Franklinite: (Fe,Mn,Zn)(Fe,Mn)2O4 ... Zn(Al, Cr)2O4 (Co, Fe)(Fe, Cr)2O4 Vàng cam ZnFe2O4 (Fe, Mn)(Fe, Mn)2O4 Nâu Fe(Fe, Cr)2O4 CuCr2O4 Nâu Fe2TiO4 (Ni, Fe)(Cr, Fe)2O4...