Quartz grit is a type of abrasive material made from crushed quartz, a naturally occurring mineral. It is used in a variety of industrial and commercial applications, including as a blasting media for cleaning and surface preparation, as a filler material, and as a filter media. Quartz grit is valued for its hardness, chemical stability, and high temperature resistance. It is also commonly used in the manufacture of quartz countertops, fiber optic and semiconductor materials, and grinding wheels.