Dark gneiss, strongly violet, golden brown tones in some areas. Garnet-rich. Slightly patterned-striped. Suitable for all applications both indoors and outdoors.
Colour variation: Modest
Weather resistance: Good
Wear resistance: Good
Place of extraction: Kulvemäki, Rautavaara
Extracted since: 2000
Density: 2,928 kg/m3
Water absorption: 0.08 p-%
Compressive strength: 233 Mpa
Flexural strength: 23.9 Mpa
Hardness: 6.1-6.6 Mohs
Mineral composition: Garnet: 15.9% Amphibole/Nuummite: 17.5% Quartz: 39.9% Cordierite: 22.3% Chlorite: 3.1% Biotite: 0.2% Magnetite: 1.1%
How to find the quarry:
Address: Heinämäentie 1072, 73900 Rautavaara.
Drive from Rautavaara to the Iisalmi direction for about 8 km and turn to road No. 870 towards Kajaani. Drive approx. 11.4 km. After a long straight road section, the Heinämäentie road (not Heikinmäentie) turns left. Drive approx. 1.2 km down this road, until boulders appear on the right side.