Common Quartz Sand & Powder SiO2Fe2O3Size≥99-99.5%≤0.06-0.1%2-150 mesh (10-0.01mm). It can be produced as request.Appearance: The big grain is wrapped by yellow skin.Main Uses: It is used in the industries such as green and black carboniztion silicon,common glass products, porcelain enamel, cast steel, water filtration, alkali, chemical industry and sandblast. Common Quartz Sand & Powder