Swedish Black Brännhult
This is our most popular diabase in Sweden, a deep, elegant black stone.
Finishes
About Brännhult
North of Älmhult in southern Småland province lies Brännhult, a black diabase quarry since the 1950s. Operations closed down in the 1970s but gathered momentum again in the late 1990s, and today Swedish Black Brännhult is our best-selling diabase. It can be found for example in the fountains at the One World Trade Center in New York, and clads the facade of the Swedish embassy in Berlin. In Sweden, diabase from Brännhult has been used to create beautiful floors, stairs and benches in Swedbank’s head office in Stockholm, as well as artist Pål Svensson’s sculpture Utblick/Insikt outside Malmö Central Station, to name just two examples.
The diabase from Brännhult also has a very low coefficient of expansion in temperature fluctuations, which makes it ideal for measuring plates, which are used in the manufacture of high-precision products.
About the material
Swedish Black Brännhult
| Technical properties | Standard | Unit | Value |
|---|---|---|---|
| Fire technology properties | 96/603/EC | Without testing | NPD | Apparent density | EN 1936 | KG / M3 | 2960 | Water absorption | EN 13755 | WEIGHT % | 0,0 | Abrasion resistance, Böhme (based on weight measurement) | EN 14157 | MM3 | 6264 | Slip resistance, honed surface (dry) | EN 14231 | SRV | 52 | Slip resistance, honed surface (wet) | EN 14231 | SRV | 18 | Flexural strength | EN 12372 | MPa | 24,4, average 25,1, standard deviation 0,42 | Compressive strength | EN 1926 | MPa | 289, average 320, standard deviation 15 | Breaking load at dowel holes | EN 13364 | N | 3951, average 4210, standard deviation 126,84 | Fracture energy | EN 14158 | J | 7 | Petrographic composition | EN 12407 (only main components) | Plagioclase | % | 49 | Amphibole | % | 40 | Ore | % | 7 | Pyrite | % | 7 | Pyroxene | % | 3 | Apatite | % | 1 |