Spinel (AB₂O₄) structures

Normal Spinel

MgAl₂O₄
Similar structures include FeCr₂O₄, Mn₃O₄, FeCr₂S₄, ZnAl₂S₄ and ZnCr₂Se₄

Co₃O₄

Inverse Spinel

Examples of inverse spinel structures include Fe₃O₄, TiMn₂O₄, TiFe₂O₄, TiZn₂O₄ and SnZn₂O₄
Examples of partially inverse spinel structures include MgFe₂O₄, MnFe₂O₄ and NiAl₂O₄