Silica/Quartz Sand is processed from the high quality silica stone, through the process of coarse crushing, roasting, fine crushing, acid treatment, water washing, drying and sieving etc.
Natural quartz sand are classified into shore sand and sand mountain.Quartz sand is mostly with impurity or mixtures, so generally it should treat differently when handling various mines .According to the content and particle size composition of Fe2O3, Al2O3,Cr2O3, of Tio2, grades are defined. silica and quartz sand can also make quartz sand after the crushing process, they are the main raw materials of glass industry.