History and origin
Oulainen is in Northern Ostrobothnia, Finland. The material is one of the Nordic blacks, basic igneous rocks appreciated for their compactness and ability to take a polish. These stones have a long history of use in memorial work and prestigious cladding. Marmi di Carrara supplies it on request.
Look and veining
The black background may show a fine grain with slight greyish glints. The pattern is uniform and suited to continuous surfaces, with small variations between blocks. Polished, it is glossy; brushed, warmer and more tactile.
Technical properties (indicative)
| Classification | black commercial granite (dark igneous rock) |
|---|---|
| Density | approx. 2,900-3,000 kg/m³ (indicative) |
| Mohs hardness | approx. 6-7 |
| Water absorption | very low |
| Main use | interiors and exteriors |
| Acid resistance | good |
Recommended uses
Suitable for monuments, headstones, kitchen worktops, bathrooms, cladding and architectural details. Outdoors it withstands frost and bad weather. Polished finishes should be avoided on outdoor steps because of the risk of slipping.
Care and maintenance
Clean with water and a neutral detergent, drying to prevent marks. To revive the black use only products made for granite, never cooking oils.
Pairings
- Light limestone or white marble
- Stainless steel and glass
- Maple and linen fabrics
FAQ
Does the black lighten over time outdoors?
Polished finishes may lose some of their shine after years of exposure; the base colour remains stable.
Is it suitable for engraving?
Yes, engravings and photo-ceramics stand out strongly on black, which is why it is widespread in memorial work.
Which finish do you recommend for a bathroom?
Honed for tops, brushed or flamed for floors and showers.
How do I order it?
Send us the sizes: we will prepare a quote and, if available, photos of the slabs or samples.
Granito Oulainen Black: available on request
We supply this stone as blocks, slabs, tiles and custom-made pieces. Tell us size, thickness and quantity: we will send photos of the available slabs and a quote within 24 hours.
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