| 1. Character and structure
Quartz sand is hard、wearproof and steady chemical property.Its main composition is SiO2.It，s milky-white or colourless translucent.The hardness is 7.Its density is about 2.65g/cm3.Quartz stone and quartz sand made by us can be divided into quartz sand、 refined quartz sand and specially made refined quartz sand.
2. Main standards
| name |
standards （mesh） |
Fire-resistant （℃） |
homogenization
（%） |
Content ofSiO2 (not less than %) |
Content of Fe2O3 (lessthan %) |
Content of powder(less than%)） |
| Refined quartz |
4-6 |
1750 |
90 |
99.5 |
0.02 |
0.2 |
| -- |
6-10 |
1750 |
90 |
99.5 |
0.02 |
0.2 |
| -- |
10-20 |
1750 |
90 |
99.5 |
0.03 |
0.2 |
| -- |
20-40 |
1750 |
90 |
98.9 |
0.03 |
0.2 |
| -- |
40-70 |
1750 |
90 |
98.8 |
0.04 |
0.3 |
| -- |
70-140 |
1750 |
90 |
98.9 |
0.04 |
0.3 |
| -- |
100-200 |
1750 |
90 |
98.5 |
0.04 |
0.3 |
| -- |
270 |
1750 |
90 |
98.9 |
0.04 |
0.3 |
| -- |
325 |
1750 |
90 |
98.7 |
0.04 |
0.3 |
3. Main use
Quartz sand is an important material. It，s widely used in glass、casting、pottery、fireproof material、 construction、metallurgy and chemical、industry、electronics、paint and so on.
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