Quartz - SiO2 is most common minerals in the earth. quartz Grits is made up from pure and transparent quartz lumps. we are making quartz grits of different sizes like 0.1 mm to 0.4 mm, 0.2 to 0.5 mm, 0.4 to 0.7 mm, 0.5 to 1.2 mm, 1.2 to 2.5 mm, 2.5 to 4.0 mm, 4.0 to 6.0 mm , etc. quartz grits are used widely in glass, Artificial Quarts Stone, Quartz Marble, Oil drilling, Sand Blasting, Glass Grinding, Fiber Glass, As a Abrasive..etc