Pure Corundum is extremely hard, ranking just below diamond. It ranks 9.0 on Mohs scale of hardness. It is commonly used as an abrasive, such as sandpaper and large machines used in machining plastics, woods and metal.
Abrasive corundum is synthetically manufactured from bauxite.
Corundum is a less commonly used term for an abrasive product known as aluminum oxide. It is also used as a loose grain abrasive in abrasive blasting applications. It's hardness and agressiveness make it an ideal abrasive for imparting a profile on the part substrate.
Corundum is used as an abrasive powder to polish lenses.
corundum
Corundum has some electrical uses, and non gem quality material, such as emery, is extensively used as an abrasive because of its high hardness.
Corundum.
Corundum is in the trigonal crystal system.
Corundum is used as an abrasive powder to polish lenses.
Corundum is a very hard mineral used as an abrasive in industry.
corundum
To melt ice
Corundum is used for many things such as for abrasive on sand paper. It is also used in machining metals, plastics, and wood.
Corundum - Crystalline Aluminium Oxide (Al2O3) is a mineral that is hard (9.0 on Mohs scale) and used as an abrasive.
Corundum, at 9 on the Mohs scale, is second only to diamond in hardness, and is able to scratch all minerals below it on the scale, thus making it a dang good abrasive.
Corundum has some electrical uses, and non gem quality material, such as emery, is extensively used as an abrasive because of its high hardness.
Corundum is very hard. It serves as the index mineral with a hardness of nine on the Mohs Hardness Scale. It is the third hardest mineral known, with diamond and moissanite being the only minerals with a greater hardness. This high hardness makes corundum especially useful as an abrasive. Crushed corundum is screened to produce uniformly-sized grits and powders. These are used as grinding media and used to manufacture polishing compounds, sand papers, grinding wheels and cutting tools. The costs of manufacturing abrasives have been declining through innovation. Synthetic corundum is increasingly being used as an abrasive instead of natural corundum.
Sapphire, another name for the mineral corundum, is an important gemstone and has had much use as an abrasive due to its hardness, 9 on the Moh's Scale.
Corundum.
Corundum is not magnetic.