Quartz Lumps & Grits
Quartz Lumps & Grits
Astona Minerals is a leading mining company specializing in supplying premium-quality quartz lumps and grits to clients worldwide. With top-notch facilities and extensive resources, we are well-equipped to meet the diverse requirements of our buyers.
Quartz Lumps & Grits Specifications
- High content of SiO2 from 99% to 99.9%
- low content of alkali, or traces
- Low Fe content upto 0.01%
- Mohs hardness:7-7.8
- Specific Gravity: 2.90-2.8
Sizes & Grade
At Astona Minerals, we benefit from owning our quartz mines, enabling us to supply quartz lumps tailored to our clients’ specific requirements. Our meticulous sorting process includes sorting, washing, resizing, re-washing, and packing to ensure the highest quality standards.
We also supply high-quality quartz grits for use in the steel industry, with specifications detailed below:
Quartz Lumps |
Size |
Color & Whiteness |
Sio2 (Purity) |
Fe2O3 |
Iron Free |
Moisture |
|---|---|---|---|---|---|---|
|
Grade-I |
Grits size from 20mm to 100mm and above |
Glassy Quartz |
99.5% min |
0.01% |
Nil |
0.33% |
|
Grade-II |
Grits size from 20mm to 100mm and above |
Super semi |
99.5% min |
0.01% |
Nil |
0.33% |
|
Grade-III |
Grits size from 20mm to 100mm and above |
Semi Grade |
99%-99.6% |
0.04% |
Nil |
0.33% |
Astona Minerals offers quartz grits in sizes tailored to clients’ specific requirements. We maintain a ready stock of various quartz grades, ranging from glossy quartz to semi-grade quartz lumps, ensuring prompt and reliable supply.
Chemical Compoistion / Paratmeters of Silica (Quartz) powder:
- Sio2 : 99.5%-99.8%%
- Fe2O3 : 0.01% or below
- Al2O3 : 0.01% or traces
- Cao : 0.01% or traces
- MgO, Na2O, K2O, TIO2, MnO are in trace or absent
