Kuru Grey, Baltic Brown, Karelia red
Kuru Grey, Baltic Brown, Karelia red
Coarse-grained, non-oriented vibrogite granite. Main colour brown. Appearance characterised by single large (diameter 15–50mm) round-shaped potash felspar surrounded by greenish plagioclase. Well suited for tiles, facade elements, and monuments.
Physical propertiesDensity | 2680 kg/m³ |
Water absorption
|
0,16 p-% |
Compressive strength
|
150 MPa |
Modulus of rupture
|
11 MPa |
Hardness
|
6.0 (Mohs) |
Potash feldspar
|
55 % |
Plagioclase | 11 % |
Quartz | 25 % |
Hornblende
|
9 % |