Swedish Black Duvhult
This jet-black diabase is often known as the most finegrained black, as it only exists in very limited volumes.
Finishes
About Duvhult
Duvhult can be found north of Lönsboda in the north-east of Skåne province. This is where we quarry Swedish Black Duvhult, one of the world’s most dense, fine-grained and black stone materials, which makes it highly exclusive. The Duvhult quarry has been operating since the 1960s. Today, almost everything produced here is exported to Japan and other Asian countries.
Swedish Black Duvhult is primarily used for different types of monument. Because the stone has a very low coefficient of expansion in temperature fluctuations, it is also used in measuring tables in industry.
About the material
Swedish Black Duvhult
| Technical properties | Standard | Unit | Value |
|---|---|---|---|
| Apparent density | EN 1936 | KG / M3 | 3010 | Water absorption | EN 13755 | WEIGHT % | <0,1 | Abrasion resistance, Böhme (based on thickness measurement) | DIN 52 108 | CM3 / 50 CM2 | 6,0 | Abrasion resistance, Böhme (based on weight measurement) | EN 14157 | MM3 | 5982 | Slip resistance, honed surface (dry) | EN 14231 | SRV | 45 | Slip resistance, honed surface (wet | EN 14231 | SRV | 9 | Flexural strength | EN 12372 | MPa | 37,1 | Compressive strength | EN 1926 | MPa | 276 | Breaking load at dowel holes | EN 13364 | N | 4350 | Rupture energy, Thickness: 20 mm | EN 14158 | J | 2,5 | Petrographic composition | EN 12407 (only main components) | Plagioclase | % | 66 | Pyroxene | % | 24 | Opaques | % | 9 |