BIRKENKOPF
Allgemeine Informationen
| Trading names | BIRKENKOPF, GRAUER HARZ-GRANIT, BROCKEN-GRANIT, BROCKEN BLAU |
| Location where found | Birkenkopf/ Thale/ Harz |
| Country | Germany |
| State | Saxony-Anhalt | Coloring | light grey |
| Grain size | Medium grained |
| Structure | Largely without direction |
| Availability | Available |
Gestein
| Bezeichnung | Granite |
| Alter | Upper 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 | 2,63 t/m³ |
| Pressure resistance | 193 MPa |
| Abriebfestigkeit | 6 cm³/50cm² |
| Water absorption | 0,13 Gew.-% |
Mineralbestand
| Orthoclase (alkali feldspar) | 52,2 % |
| Plagioclase | 20,1 % |
| Quarz | 22,3 % |
| Biotite mica | 5,3 % |
INSK – Internationale Naturstein-Kartei
| INSK Number old | 3.1.13 |
| INSK Number | 11.3 |
Care information from Möller-Chemie
Stain removal guide:
Recommendations for bonding and filling
Productfinder bonding / filling:
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