| SiO2 | 37.09 | Al2O3 | 20.11 |
| Fe2O3 | 1.83 | TiO2 | 0.46 |
| MgO | 5.26 | FeO | 29.73 |
| CaO | 2.09 | MnO | 1.19 |
| Cl | 0.0087 | | |
| PHYSICAL INDEX | |
| Color | Red orange yellow green purple brown black pink |
| Toxicity | Non-toxic |
| Working temperature | 1300 ℃ |
| Specific Gravity | 3.9g/cm3-4.1g/cm3 |
| Mosh hardness | 7.5-8.0 |