
| Real specific weight | g/cm3 | min. 3.20+/-0.02 |
|---|---|---|
| Mohs Hardness | 9 | |
| Roundness | % | min. 90 |
| Crushing Strength(20mm) | kgf/mm2 | min. 1800 |
| Water Absorption | % | 0.02 max |
| Self-wearing(EWT) | % | 0.02 max.(24h) |
| Color | White | |
| Surface | Smooth and no cracking. | |
| Chemical composition | Al2O3(%) | min. 80 |