| Description | Value | |
| (25/9.5) mm | (12.5/2.36) mm | |
| Volume weight | 1.43 t/m3 | 1.45 t/m3 |
| Specific gravity | 2.56 | 2.54 |
| % Absorption | 1.88 | 1.94 |
| Crushing factor | 21.0% | 22.0% |