| Technical properties | |
| Density | 2610 kg/m³ (163 lb/ft³) |
| Young's modulus | 62.5 GPa (9.1 x 10^6 psi) |
| Compressive strength | 180 MPa (26.1 x 10³ psi) |
| Modulus of rupture (Bending test) | 10.9 MPa (1580 psi) |
| Water absorption/Porosity | 0.26/0.68 % |
| Hardness: Vickers/Mohs | -/5.6 |
| Mineral composition | |
| Microcline | 48 % |
| Quartz | 31 % |
| Plagioclase | 11 % |
| Hornblende | 6 % |
| Biotite | 4 % |
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Porkkala Red is large-grained, red granite quarried by Finska near Helsinki. The material is also known as Finnish Koral.
Porkkala Red is quarried in large quantities and is regularly stocked at Finska and by some large international stone processors and block dealers.
Porkkala Red is suitable for both exterior and interior purposes. Mainly used as a building stone for facades, floors and interior wall claddings.
Recent projects include: