Abrasive
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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:
- Borazon
- Carborundum
- Coated abrasives
- Cubic Boron Nitride (CBN)
- Diamond dust
- Emery (mineral) (impure corundum)
- Grinding wheel
- Powdered glass
- Pumice dust
- Sand
- Sandpaper