Q Minerals (Xinyi) Co is a leading manufacturer of Fused Silica (Grains & Powder) and Crystalline Silica ( Sand & Powder) which are widely used as raw materials for Investment Casting , Refractory , Technical Ceramics , EMC (filler) etc.
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
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
or in accordance with customer's request .
3. We have Advanced Quality Control /Assurance Equipment for Testing & Analyzing (MALVERN Mastersizer 2000 Analysizer): Sieve analysis , PH , Magnetics , Surface Area , Laser PSD Sizer , Full set of Chemicals Analysis .
If you are interested in Fused Silica , please contact Mr Qiao xiangchun .
Thank you .