Q Minerals (Xinyi) Co., Ltd. is a specialized and a leading silica material mining, processing and exporting company in China. Our products rangeinclude Silica sand/powder, and Fused Silica Sand/powder, which are mainly used as materials for EMC filler, Refractory, Ceramic, Glass, Paint, , Silicon Rubber, Etc. Our annually production is around 20,000MT and export to East Asian,Indian, European and Northern America If you need more information, please do not hesitate to see our web at , or 1. Fused Silica(Quartz) Grains , Fused Micro Silica(Quartz) Powder Grade A : SiO2: 99.9%min Grade B : SiO2: 99.8%min Particle size: A : 5-50mm, 0-0.5mm , 0.5-0.2mm , 0.2-0.1mm , 0.5-1mm B:-4+10mesh ,-10+20mesh , -20+50mesh , -30+50mesh , -50+100mesh ,-120F ,-200F , -325F, -400F,-600F.800F or in accordance with customer's request . 2. Crystalline Silica(Quartz) Sands , Crystalline Micro Silica(Quartz) Powder High Whitness & Purity Grade : SiO2 : 99.5% min-99.98%min Refined Grade : SiO2 : 99.5% min-99.9%min Particle size: 2-4mesh , 4-10mesh , 10-20mesh , 20-40mesh , 40-80mesh , 80-200mesh , -100mesh , -200mesh , -325mesh , -400mesh , -600mesh.800F or in accordance with customer's request . 3. We have Advanced Quality Control /Assurance Equipment for Testing & Analyzing : Sieve analysis , PH , Magnetics , Surface Area , Laser PSD Sizer , Full set of Chemicals Analysis . For more details , please contact us . He jiao