Large Crystal Fused Magnesite is produced in electric arc furnace by fusing 91%-92% MgO with 0mm-3mm size, which is featured with high purity, big crystalline, dense structure, good slag resistance, and good stability against thermal chocks. It is a good high-temperature electrical insulating material as well as major raw material in making high grade magnesia brick, magnesia carbon brick, and magnesia monolithic refractories.