| Silica (SiO2) | 45.57% |
| Alumina (Al2O3) | 33.10% |
| Potassium Oxide (K2O) | 9.87% |
| Ferric Oxide (Fe2O3) | 2.48% |
| Sodium Oxide (Na2O) | 0.62% |
| Titanium Oxide (TiO2) | Traces |
| Calcium Oxide (CaO) | 0.21% |
| Magnesia (MgO) | 0.38% |
| Moisture at 100oC | 0.25% |
| Phosphorus (P) | 0.03% |
| Sulphur (S) | 0.01% |
| Graphite Carbon (C) | 0.44% |
| Loss on Ignition (H2O) | 2.74% |