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| Korpilahti
Black
A black gabbro from Korpilahti.
The texture of this non-foliated, evenly black gabbro is
of intermediate composition. Suitable for all interior and
outdoor uses.
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Variation
in colour: Slight
Weather Resistance: Good
Abrasion Resistance: Good
Quarry site: Korpiaho, Korpilahti
Quarrying began in 1959
Amount of Quarries: 2
| Mechanical Properties |
|
Density |
kg/m3 |
| Water absorption |
wt % |
| Compressive strength |
MPa |
| Flexural strength |
MPa |
| Hardness |
Mohs |
Mineral composition |
| Plagioclase |
70 % |
| Biotite |
30
% |
| Amfibol |
10
% |
| Pyroxene |
4
% |
| Others |
3 % |
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