LAPPIA SILVER
Allgemeine Informationen
| Trading names | LAPPIA SILVER, PUOLANKA |
| Location where found | Puolanka / Oulu |
| Country | Finland | Coloring | black |
| Grain size | Medium grained |
| Structure | layered or directional |
| Availability | Available |
Gestein
| Bezeichnung | Mica slate |
| Alter | Precambrian |
| Gesteinsgruppe | Metamorphic rocks |
Technische Eigenschaften
| Polish quality | Polish possible. |
| Polish durability | The polish is only partially durable for exterior use. |
| Suitable for flooring | Suitable. However, the high abrasion resistance of hard stone is not achieved |
| Acid resistant | The stone is resistant to acid under usual circumstances. |
| Frost resistant | should be frost resistant |
Technische Daten
| Bulk density | 2,86 t/m³ |
| Pressure resistance | 69 MPa |
| Bending strength | 24 MPa |
| Water absorption | 0,23 Gew.-% |
Mineralbestand
| Muscovite mica | 37 % |
| Biotite mica | 18 % |
| Quarz | 38 % |
INSK – Internationale Naturstein-Kartei
| INSK Number old | 10.2.26 |
| INSK Number | 56.5 |
Stain removal guide:
Recommendations for bonding and filling
Productfinder bonding / filling:
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