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Ilmenite group

[ A ][ X O₃]

• [ Zn²⁺ ][ Ti ]: Ecandrewsite
• [ Mg²⁺ ][ Ti ]: Geikielite
• [ Fe²⁺ ][ Ti ]: Ilmenite
• [ Mn²⁺ ][ Ti ]: Pyrophanite
• [ Mg²⁺ ][ Si ]: Akimotoite
• [ Mn²⁺ ][ (Sb⁵⁺,Fe³⁺)]: Melanostibite
• [ Na⁺ ][ Sb ]; Brizziite-III

• Polymorph: Perovskite subgroup (Monoclinic)
• X => Si: Pyroxmangite group

• Class: Titanate, Antimonate
• System: Hexagonal, Trigonal