ASTRA
Allgemeine Informationen
| Trading names | ASTRA |
| Location where found | Saint-Ludger-de-Millot / Quebec |
| Country | Canada | Coloring | pink, white, light grey, black |
| Grain size | Coarse grained |
| Structure | layered or directional |
| Availability | Available |
Gestein
| Bezeichnung | Gneiss |
| Alter | Proterozoic |
| Gesteinsgruppe | Metamorphic rocks |
Technische Eigenschaften
| Polish quality | Polish possible. |
| Polish durability | The polish is durable for exterior use. |
| Suitable for flooring | Suitable |
| Acid resistant | The stone is resistant to acid under usual circumstances. |
| Frost resistant | frost resistant |
Technische Daten
| Bulk density | 2,67 t/m³ |
| Pressure resistance | 152 MPa |
| Bending strength | 12,47 MPa |
| Water absorption | 0,15 Gew.-% |
INSK – Internationale Naturstein-Kartei
| INSK Number old | 2.2.70 |
| INSK Number | 43.9 |
Recommendations for bonding and filling
Productfinder bonding / filling:
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