Roeyken Granite - Roykengranitt

At Spikkestad in Røyken is the quarry where we take out smoke granite. It is somewhat more coarse than the iddefjord granite, and has a color scheme in light brownish or gray-white, often with green or white crystals.

At Spikkestad in Røyken is the quarry where we take out smoke granite. It is somewhat more coarse than the iddefjord granite, and has a color scheme in light brownish or gray-white, often with green or white crystals.

The rock consists mainly of alkali flakes, biotites, plagioclasms and quite a quarter of quartz.

The smoke granite is most used as a building block for walls, stairs, floorboards, edges and the like.

Facts: Roeyken granite

Material: granite

Density: 2.57 g / cm3

Pressure strength: 206.5 MPa

Bending strength: 11.2 MPa

Water absorption: 0.44% by weight