Natural
Stone Suppliers from India
|
Quartzite Varieties /
Colors |
| PHYSICAL PROPERTIES OF SANDSTONE & QUARTZITE | |
| Color | Minor color tonal variations exist but within the tolerance limit. |
| Hardness | 6 to 7 on Moh's Scale Density 2.32 to 2.42 Kg/m3 |
| Compressive Strength | 365 to 460 Kg/m2 |
| Water Absorption | Not more than 1.0 % |
| Modulus of Rupture | 197-200 Kg/cm2 |
| Porosity | Low to very low. |
| Weather Impact | Resistant |
| CHEMICAL PROPERTIES OF SANDSTONE & QUARTZITE | |
| Chemically they are very resistant Mono-Mineralic rocks, principally of silica. | |
| SiO2 | 93-94% |
| Iron (Fe2O3) | 1.5%-1.6% |
| Alumina (Al2O3) | 1.4 to 1.5% |
| Soda (Na2O) & Potash (Kro) | 1.0% to 1.2% |
| Lime (CaO) | 0.8% to 0.9% |
| Magnesia (MgO) | 0.2 to 0.25% |
| Loss On Ignition (LOI) | 1.0% to 1.2%. |
| They are highly resistant to avoids, alkalis and thermal impact. Insolubility in acids and alkalis is about 97%. | |
