There are two types of fused alumina – natural fused alumina, also called corundum, and (synthetic) fused alumina. Corundum is pure Al2O3. Major mineral constituent of synthetic fused alumina is physical fused alumina. Brown fused alumina, white fused alumina, pink fused alumina, zirconia alumina, black fused alumina, single crystalline fused alumina, and microcrystalline alumina belong to synthetic fused alumina. Brown fused alumina is made by high quality bauxite as main material, fusing and purifying in a pouring electric arc furnace. White Fused Alumina is produced by fusing calcined alumina in an electric arc furnace under carefully controlled conditions.
Industry analysts point out that abrasives industry has been regarded as the "Industrial teeth". It has an intimate relationship with equipment manufacturing industry, the aeronautics and astronautics industry, shipbuilding, new energy, auto, home appliance, and the electronic information industry. Currently, China, India, and Russia are the three biggest consumption market of synthetic fused alumina. China is expected to become the world's biggest synthetic fused alumina manufacturer.