Zinc Ferrite Brown Spinel, an inorganic pigment, is a reaction product of high temperature calcination in which Zinc (II) Oxide, Iron (II) Oxide, and Iron (III) Oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of spinel. Its composition may include any one or a combination of the modifiers Al2O3, InO2, NiO, SiO2, SnO2 or TiO2.