Quartz is a chemical component that is comprised of one part silicon and two parts oxygen. It is found abundantly in igneous, metamorphic and sedimentary rocks. The hardness of quartz lends it to a plethora of uses as an abrasive material. Quartz is also chemically inert when it comes in contact with a host of substances, which allows for extreme durability of the material since it resists chemical weathering. Quartz is generally converted to quartz sand, also known as silica sand, to take advantage of its numerous properties, which involves a host of processes. Crushing The raw quartzite is initially crushed to the right size. Ball Mill To grind the crushed quartz sand to customer specified levels, a ball mill is used. The ball mill is essentially a rotating device with a horizontal orientation that moves by using the outer gear. The quill shaft transfers the material to the grinding chamber uniformly. Different types of steel balls are present in the grinding chamber. The constant rotation of the barrel results in a centrifugal force that brings the steel balls to the center of the barrel to grind the crushed materials. A discharging board aids in taking the ground materials away from the chamber. Coarse Powder Mill A recent development in the quartz sand preparation process, the coarse powder mill is extremely effective. It is used to preprocess a variety of crushable nonflammable and nonexplosive brittle materials that have Mohs below 9. Almost 80 percent of the finished sand in this case can be finer than 1 to 2 mm. Uses of Quartz Sandstone Processed quartz sandstone is used in a variety of ways. It is often included in the materials used in creating foundry sand, hydrofac sand, glass items, optical materials, sharpening materials, polishing compounds and grinding compounds. People have also found it useful as a filter and roofing material as well as a traction material for mining and railroads. It is also used in baseball fields, sand boxes, gold courses and volleyball courts.