Quality & Lab Analysis
Our silica is tested by an independent laboratory. The representative results below show high silica content, low iron and high whiteness — the specifications glass, foundry, adhesive and coating buyers ask for.
Independent laboratory analysis of Shiv Mines and Minerals silica shows SiO₂ of about 96–97%, iron (Fe₂O₃) from 0.076%, and whiteness of 84–87%.
Silica / Quartz (mine sample)
Ref. 5709/24/O
| SiO₂ | 97.324% |
| Al₂O₃ | 2.745% |
| Fe₂O₃ | 0.173% |
| CaO | 0.195% |
| MgO | 0.095% |
| LOI | 0.615% |
| K₂O | 0.031% |
| Na₂O | 0.055% |
| Whiteness | 87.300% |
| Water absorption | 3.590% |
| Expansion @1200°C | 0.255% |
Silica Powder (ground / pisai powder)
Ref. 5710/24/O
| SiO₂ | 96.224% |
| Al₂O₃ | 4.265% |
| Fe₂O₃ | 0.076% |
| CaO | 0.190% |
| MgO | 1.885% |
| LOI | 0.630% |
| K₂O | 0.030% |
| Na₂O | 0.055% |
| Whiteness | 84.300% |
| Water absorption | 2.590% |
| Expansion @1200°C | 0.250% |
Source: independent analysis certificates from Gujrati Minerals Laboratory, Beawar, Rajasthan (dated 21 December 2024). Values are representative of tested samples; results vary by grade and batch. A test certificate for your supplied material is available on request.
Laboratory analysis certificates
Quality — FAQs
Is your silica sand lab tested?
Yes. Our silica is analysed by an independent laboratory. Representative results show SiO₂ of about 96–97%, low iron (Fe₂O₃ from 0.076%) and high whiteness (84–87%).
Can I get a test certificate for my order?
Yes. We can provide a laboratory analysis certificate for supplied material on request. Contact us with your requirement.
What iron content does your silica have?
Independent analysis shows Fe₂O₃ (iron oxide) from 0.076% to 0.173% depending on the sample and grade.