The mechanism of magnesioferrite formation is explained by that Mg²⁺ from MgO enters into the magnetite lattice to form the magnesioferrite by displacing Fe²⁺ ion in the magnetite, in where it has some discrepancy because the magnetite is not stable thermodynamically at the temperature.

Is magnesioferrite magnetic?

Magnesioferrite-Magnetite Series. Strongly magnetic.

What is magnesium ferric?

Magnesioferrite is a magnesium iron oxide mineral, a member of the magnetite series of spinels. Magnesioferrite crystallizes as black metallic octahedral crystals. It is named after its chemical composition of magnesium and ferric iron. The density is 4.6 - 4.7 (average = 4.65), and the diaphaniety is opaque.