NEGRO PRATERIA
Allgemeine Informationen
| Trading names | NEGRO PRATERIA |
| Location where found | Arronches/Estremoz |
| Country | Portugal | Coloring | dark grey, black |
| Grain size | Fine grained |
| Structure | spotted |
| Availability | Available |
Gestein
| Bezeichnung | Tonalite |
| Alter | Carboniferous |
| Gesteinsgruppe | Abyssal rock |
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 | 2,84 t/m³ |
| Pressure resistance | 166 MPa |
| Abrasion resistance according to Italian standard | 0,5 |
| Bending strength | 18,2 MPa |
| Water absorption | 0,14 Gew.-% |
| Porosity | 0,39 Vol.-% |
INSK – Internationale Naturstein-Kartei
| INSK Number old | 4.2.33 |
Recommendations for bonding and filling
Productfinder bonding / filling:
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