Quartz sand is quartz particles produced by crushing and processing quartz stone. It is an important industrial mineral raw material, widely used in
Glass, foundry, ceramics and refractory materials, ferrosilicon smelting, metallurgical fluxes, metallurgy, construction, chemical industry, plastics, rubber, abrasives, and other industries.
Quartz sand is a hard, wear-resistant silicate mineral with stable chemical properties, and its main mineral component is SiO2.
The color of silica sand is milky white or colorless and translucent. It has a hardness of 7, is brittle with no cleavage, exhibits a conchoidal fracture, and has a greasy luster. Its density is 2.65, with a bulk density of 1.6 for 1-20 mesh and 1.5 for 20-200 mesh. Its chemical, thermal, and mechanical properties are as follows:
It exhibits obvious anisotropy, is insoluble in acids, slightly soluble in KOH solution, and has a melting point of 1750°C.