| technical properties | |
|---|---|
| bulk-density | 2.93 |
| water absorption | |
| by weight | 0.19% |
| Compressive Strength (MPa) | |
| average dry | 145 |
| average soaked | 122 |
| Flexural strength (MPa) | |
| average dry | 11.5 |
| average soaked | 11.4 |
| Mineralogy (vol%) | |
| K-feldspar | 55% |
| Quartz | 30% |
| Plagioclase | 12% |
| Biotite | 2% |
| Other | 1% |