Silica Sand Minerals

Silica sand normally contains 85-99.2% silica (SiO2) but the impurities are the prime factor for its gradation for use in various industries. According to suitability for industrial use, its prevailing names are building sand, paving sand, moulding or foundry sand, refractory or furnace sand, engine sand, filter sand, glass sand, glass and polished sand etc.