The detail specification as follows:
1.Quartz Sands (Silica Sands)
High purity grade: SiO2: 99.95%min-99.8%min Fe2O3: 3ppm max-30ppm max, size: 2-200 mesh high purity silica sand, quartz stone
Deliberated grade: SiO2: 99.8%min-99.0%min Fe2O3: 50ppm max-0.03% max, size: 2-325 mesh
2.Natural Crystal Powder
SiO2: 99.90%min-99.99%min, size: 2-300 mesh
3.Fused Quartz Ingot
SiO2: 99.9%min Fe2O3: 50ppm max, Al2O3: 0.03% max, size: 5-100 mesh
4.Quartz In Lump
Special grade: SiO2: 99.9%min,
1st grade: SiO2: 99.8%min Fe2O3: 0.004%max
2nd grade: SiO2: 99.7%min Fe2O3: 0.008%min
3rd grade: SiO2: 99.5%min Fe2O3: 0.03%min.
5.Micro-silica Powder
SiO2: 99.5%min-99.0% min, Fe2O3: 0.02%max, Al2O3: 0.3% max, size: 200-800 mesh
6.Fused Quartz Powder
SiO2: 99.9%max, Fe2O3: 50ppm max, size: 2-325 mesh
Contact person: Ms.Zhaojing