Abrasive

An abrasive is usually a material that is used to smooth or to machine another softer material through extensive rubbing. Some common examples of abrasive objects are:

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:* Borazon or Cubic Boron Nitride (CBN)

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:* Carborundum

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:* Coated abrasives

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:* Diamond dust

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:* Emery (mineral) (impure corundum)

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:* Grinding wheel

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:* Powdered glass

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:* Pumice dust

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:* Sand

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:* Sandpaper

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Borazon: Borazon is the third hardest substance that is artificially produced, preceded by aggregated diamond nanorods and man-made diamonds, respectively. Borazon is a crystal created by heating equal quantities of boron and nitrogen at temperatures greater than 1800 °C (3300 °F) at 7 GPa (1 million...

Cubic Boron Nitride: REDIRECT Boron nitride#Cubic boron nitride...

Emery (mineral): Emery (also known as iron spinel and hercynite) is a common impure variety of the mineral corundum....