Quartzite-Swan
Quartzite is a hard metamorphic rock which was originally sandstone. Sandstone is converted into quartzite through heating and pressure usually related to significant compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, ivory and golden, are due to other minerals.
CHEMICAL PROPERTIES
| 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%. |
Quartzites are highly resistant to acids, alkalis and thermal impact. Non reactive to acids and alkalis about 97%.
PHYSICAL PROPERTIES
| Color | Minor color tonal variations exist but within the tolerance limit. |
|---|---|
| Density | Between 2500 and 2650 Kg/m3 |
| Compressive Strength | usually lies above 250 MPa |
| Water Absorption | Not more than 1.0 % |
| Flexural strength | 18 – 22 MPa |
| Porosity | Low to very low. |
| Weather Impact | Resistant |
Offered in following Finished and Sizes:
| Finishes | Honed, Polished, Sand / Shot Blasted, Flammed, Leather, Bush Hammered, etc. |
|---|---|
| Size | Gangsaw Slabs, Cutter Slabs, Cut to Size, Tiles and as specified by client. |
| Thickness (in MM) | 16 / 20 / 30 / 40 and as specified by client. |