Maghemite
Maghemite (Fe2O3, γ-Fe2O3) is a member of the family of iron oxides. It has the same spinel ferrite structure as magnetite and is also ferrimagnetic.
Maghemite can be considered as an Fe(II)-deficient magnetite with formula
![(\mathrm{Fe}^\mathrm{III}_8)_A[\mathrm{Fe}^{\mathrm{III}}_{40/3}\square_{8/3}]_B\mathrm{O}_{32}](/uploads/202501/25/77070285986e98a0f745fe0b1e7782e91322.png)
where
represents a vacancy, A indicates tetrahedral and B octahedral positioning.