Felspar are of two popular kinds that are abundantly found in nature. The first is Potash Feldspar which is a potassium alumino silicate rock that occurs naturally in pegmatite masses. In the ceramic and glass industries, feldspar is used as a flux. It also gives the body more endurance. Feldspar is a very rare event of an ore that is absolutely free of mica. Clay and other exogenous matter are the most common contaminants, and they all appear as fine masses under a millimetre.
The second one is Soda Feldspar, which is a sodium-based Aluminium Silicate group. Feldspar is mostly used in the ceramic and glass industries. Tiles, Whiteware, and Sanitaryware are manufactured in tiny amounts. Feldspar is also used as a flux or cementing element in various monitoring films and prosthetic dentition, as well as Catalysts, Acid Resistant, and Decorative Stone.
| Potassium Feldspar | ||||||
|---|---|---|---|---|---|---|
| CHEMICAL PROPERTIES XRF Verified |
PHYSICAL PROPERTIES | |||||
| Si2o | % | 69.5 + 1.0 | MBI | mg g-1 | - | |
| Ai2o3 | % | 17.5 + 1.0 | Sulphate | ppm | - | |
| Fe2o3 | % | Max 0.10 | pH | - | ||
| K2O | % | Min 11.0 | Conductivity | uS | - | |
| Na2O | % | 2.5 + 0.75 | Soluble Salt | ppm | - | |
| CaO | % | Max 0.5 | MoR(extruded) | Kg cm-2 | - | |
| MgO | % | 0.03 | MoR(Dry) | - | ||
| LOi | % | <0.3 | WABS | % | - | |
| L* | 75.0 + 3.0 | |||||
| Colour | a* | - | ||||
| b* | - | |||||
| Shrinkage | % | - | ||||
| Partical Size Distribution by SediGraph | Sleve Residue-wet Retention | ||||
|---|---|---|---|---|---|
| <7um | % | - | >125um | % | - |
| <5um | % | - | >75um | % | - |
| <2um | % | - | >45 um | % | - |
| <1um | % | - | Cumulative>45 | % | - |