The sand that we use in our everyday life is called a brown sand or construction sand. It also contains some amount of Silica. But it is not pure. So, it can’t be used for the special purposes. The typical brown sand used for construction and other related activities can contain only 70 to 75% of SiO2, along with minerals like iron, potassium, carbonate, and several other trace elements/minerals. This will make regular sand susceptible to chemical reactions. On the other hand, the Specialized Silica Sand contains over 95% to 98% Silicon dioxide. That makes Silica sand can be useful in a variety of industries like Foundry, Casting, Glass Manufacturing, Construction Chemicals and Paints etc