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Contact Supplier| Properties | Unit | Value |
|---|---|---|
| SiO2 | % | 99.70% (00.20%) |
| Fe2O3 | % | 00.04% (max) |
| Al2O3 | % | 00.12% (00.05%) |
| Cr2O3 | % | 0.00040 (max) |
| TiO2 | % | 0.02 |
| LOI | % | 0.17 |
| Refractive index | — | 1.544 – 1.553 – Dr + 0.009 (B – G interval) |
| Specific gravity | — | 2.65 constant; variableinimpure varieties |
| Melting point | — | 1650 (75)oC |
| Streak | — | White |
| Boiling point | — | 2230oC |
| Crystal system | — | Trigonal |
| Solubility | — | H2O insoluble |
| Millimetres Scale | ASTM Scale |
|---|---|
| 38 Microns | 400 & 200 Mesh |