Is white corundum made of aluminum oxide?
1. White corundum is alumina, which is fused alumina. The raw material of white corundum is alumina, which is smelted at high temperature to become fused alumina, also called white corundum. White corundum smelted at high temperature (fused oxidation) Aluminum) is harder, Mohs hardness 9 2. The main component of white corundum is alumina. Specifically,