Table 1.
Chemical composition and physical properties of the natural form of zeolite.
| Item | Zeolite Characteristics |
|---|---|
| Chemical composition | |
| SiO2 | 650.0–713.0 g/kg |
| Al2O3 | 115.0–131.0 g/kg |
| CaO | 27.0–52.0 g/kg |
| K2O | 22.0–34.0 g/kg |
| Fe2O3 | 7.00–19.0 g/kg |
| MgO | 6.00–12.0 g/kg |
| Na2O | 2.00–13.0 g/kg |
| TiO2 | 1.00–3.00 g/kg |
| Si/Al ratio | 4.80–5.40 |
| Physical properties | |
| Softing point | 1260 °C |
| Melting point | 1340 °C |
| Flow temperature | 1420 °C |
| Specific gravity | 2200–2440 kg/m3 |
| Volume density | 1600–1800 kg/m3 |
| Porosity | 24–32% |
| Compactness | 70% |
| Whitens | 70% |
| Appearance | Gray-green |