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| Ristijärvi
Grey/
Kajaani Grey
A grey granite from Ristijärvi.
The texture of this non-foliated, equigranular grey granite
is of intermediate composition. All interior and outdoor
uses.
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Variation
in colour: Slight
Weather Resistance: Good
Abrasion Resistance: Good
Quarry site: Tiukuvaara, Ristijärvi
Quarrying began in 1955
Amount of Quarries: 1
| Mechanical Properties |
|
Density |
2670
kg/m3 |
| Water absorption |
0,3
wt % |
| Compressive strength |
223 MPa |
| Flexural strength |
14,7
MPa |
| Hardness |
6,2 Mohs |
| Mineral composition |
| Potash feldspar |
9% |
| Plagioclase |
49% |
| Quartz |
31% |
| Biotite |
10% |
| Other |
1% |
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