Magnesium zirconium brick with high purity fused magnesia and synthetic magnesia zirconium as raw material, high pressure molding, high temperature firing, the microstructure, the main mineral phase for the magnesite, forsterite and oblique zircon, alkali metal , oxides and sulfides, etc. With excellent resistance to erosion, used in glass kiln regenerator lattice in the upper part of the body, no clogging and collapse phenomenon. Life of up to 8 years or more. -