Silica sand is a major ingredient in the production of glassmaking in fact, silica is the primary component in standard glass products ranging from windows to bottles. The purity of the silica sand used plays a role in determining the colour, strength and clarity of the final product. The most common form of SiO2 is quartz a chemically inert and relatively hard mineral. SiO2 grades at a 7 out of 10 on Mohs hardness scale, making it ideal for use as filtration media and abrasive blasting sands. silica sand supply capacity production 100,000 M ton to 150,000 ton per month Price : FOB MV - SiO2 99.5% UP - Fe2O3 0.03% Thank you