4 OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
4.C Metal:Oxygen = 2:3, 3:5, and Similar
4.CB With medium-sized cations
4.CB.05 Tistarite Ti2O3
Space Group R 3c
Point Group 3 2/m
4.CB.05 Auroantimonate AuSbO3
Space Group Ortho ?
Point Group Ortho
4.CB.05 Brizziite-VII NaSb+++++O3
Space Group R 3
Point Group 3
4.CB.05 Corundum Al2O3
Space Group R 3c
Point Group 3 2/m
4.CB.05 Eskolaite Cr2O3
Space Group R 3c
Point Group 3 2/m
4.CB.05 Hematite Fe2O3
Space Group R 3c
Point Group 3 2/m
4.CB.05 Karelianite V2O3
Space Group R 3c
Point Group 3 2/m
4.CB.05 Geikielite MgTiO3
Space Group R 3
Point Group 3
4.CB.05 Ecandrewsite (Zn,Fe++,Mn++)TiO3
Space Group R 3
Point Group 3
4.CB.05 Ilmenite Fe++TiO3
Space Group R 3
Point Group 3
4.CB.05 Pyrophanite MnTiO3
Space Group R 3
Point Group 3
4.CB.05 Brizziite-III NaSb+++++O3
Space Group R 3
Point Group 3
4.CB.05 Melanostibite Mn(Sb+++++,Fe+++)O3
Space Group R 3
Point Group 3
4.CB.05 Romanite (Fe++,U,Pb)2(Ti,Fe+++)O4
Space Group Trig ?
Point Group Trig