GEOLOGY

Detailed explanation-1: -Corundum is an aluminum oxide mineral of the oxides and hydroxides group, with structural formula Al2O3.

Detailed explanation-2: -Aluminum oxide (uh-LOO-min-um OK-side) is white crystalline powder that occurs in nature in a variety of minerals, including boehmite, bayerite, corundum, diaspore, and gibbsite. Corundum is second hardest naturally occurring mineral.

Detailed explanation-3: -Aluminum oxide is an inert compound of aluminum and oxygen. It is formed by oxidation of aluminum and oxygen to form Al2O3, a non-metal or pure ceramic.

Detailed explanation-4: -Al2O3, Aluminum Oxide, Corundum, Sapphire Aluminum oxide is a ceramic compoundwith a hexagonal crystal lattice. The oxygen anions define a hexagonal close packed structure and the aluminum cations occupy 2/3 of the octahedral sites in the hcp lattice.

Detailed explanation-5: -Corundum is the crystalline form of aluminum oxide (Al2O3) and occurs naturally as an igneous and metamorphic mineral and is synthesized artificially by various high-temperature techniques [59].