Silicon Stone is the general name of vein quartz, quartz rock and quartz sandstone. It is mainly used as acid refractory brick for metallurgical industry. Pure silica can be used as quartz glass or to extract monosylsilicon.
Product: | Silicon Stone/Quartz Stone |
HS Code: | 25062000 |
Appearance: | Brown and white, lump shape. |
Function: | 1) High quality and purity, anti-corrosive, anti- acid. 2) 1730-1750℃ |
General Specification: | SiO2>97.31% Fe2O3<0.018% Al2O3<0.36% CaO<0.09% MgO<0.04% |
General Packing: | Bulk in vessels or packing in jumbo bags. |
Application: | In sand mold casting, glass industry, rust removal, pool water filteration, bridge concrete, surface coating. |
% | <.......................... p.p.m............................=""> | ||||||||
No. | Sample Name | SiO2 | K2O | Na2O | Li2O | MgO | CaO | Al2O3 | Fe2O3 |
1 | Quartz Ore(2) | 97.5 | 13.0 | 19.0 | 4.0 | 7.2 | 13.0 | 72.2 | 13.0 |
2 | Quartz Ore(4) | 97.6 | 5.2 | 12.0 | 3.0 | 11.0 | 12.0 | 50.0 | 7.0 |
3 | Quartz Ore(8) | 97.88 | 8.0 | 16.0 | 6.0 | 6.0 | 15.0 | 63.0 | 9.0 |
4 | Quartz Ore(9) | 98.5 | 9.0 | 17.0 | 4.0 | 9.0 | 12.0 | 72.0 | 7.0 |
5 | Quartz Ore(11) | 99.988 | 6.0 | 10.0 | 5.0 | 5.0 | 12.0 | 69.0 | 12.0 |