Names and distribution: Botanically, the species Acacia melanoxylon belongs to the Acacia genus and thus to the legume family. Australian Blackwood is mainly found in Tasmania. A prominent sister, Koa, also has a narrow distribution area, namely Hawaii. There are several dozen other Acacia species in Africa and Asia, but they differ significantly in color and characteristics from Australian Blackwood.
Wood appearance: Heartwood light brown to reddish dark brown with distinctive markings. Timber with a curved growth pattern is particularly popular. Pores medium to coarse, scattered and not numerous, variable in size and density. storage cells are stored around the pores. Medullary rays arranged very finely and in tiers, radial growth zones differently distinct. Occasional alternating torsion and strong torsion. Decorative to very decorative.
Properties: The average density at 12% moisture content is 0.65 t/m3 (+/- 0.56…0.75). The shrinkage is specified as 3.8% tangential and 3.4% radial, both low values. Both species show good stamina. The wood dries easily and without cracks and can be worked with all tools without difficulty. Decorative and smooth surfaces can be created.
Uses: High-quality interior and exterior wood, boat building, musical instruments, woodturning, veneers.
| References: |
Guitar, Christina Kobler, Austria |
| Sources: |
Hawaii Forest Industry Association 1998: Description of Hawaii’s Wood Wagenführ 1989: Wood atlas |
Back & sides in Australian Blackwood
Guitar maker Christina Kobler, Austria
www.koblerguitars.com
