Pokostovsky granite
Physical and mechanical properties:
| Volume weight | 2650 kg / m3 |
| Water absorption | 0,18 % |
| Compressive strength | 135-260 MPa |
| Flexural strength | No |
| Abrasion | 0.24 g / cm |
Mineral composition (%):
| Microcline | 15-30 | |
| Quartz | 10-25 | |
| Biotite | 5-15 |