The black granadillo wood also called African granadillo, African grenadine or blackwood is a very hard wood, of almost black color and native to the savannah and South Africa.
It is a quality wood with excellent performance. Traditionally, it is confused with ebony due to its dark color, although it is significantly denser and harder.
It is listed as an endangered species. Therefore, its use and trade are very controlled.
Its scientific name is Dalbergia melanoxylon.
Features of Granadillo Preto
Color: Its color is black, intense in some occasions and in others brown. The sapwood is much lighter, even yellow, but thin.
Fiber: Slightly interlaced.
Grain: Medium, medium.
Density: Approximately 1250-1300 kg / m3 at 12% humidity.
Toughness: It is one of the hardest and densest woods in the world.
Durability: It is considered a species very resistant to putrefaction. The post is susceptible to attack by some insects.
Dimensional stability: It is a very stable wood.
- Volumetric contraction coefficient: 0.36%. A little nervous.
- Static flexion: 226N / mm2.
- Modulus of elasticity: 16,000 N / mm2.
- Axial compression: 72 N / mm2
Workability: In general terms, it is a hard wood to work due to its extraordinary hardness and density. With hand tools it is an almost impossible task, and with mechanical tools there will be significant wear.
- Slow drying and risk of cracking.
- Acceptable bonding and finishing.
High Price. Not only because of the logical limitations due to its overexploitation, but also because it is a kind of very slow growth.
Uses of Granadillo Wood
- Spinning. Although it causes wear on tools, thanks to its hardness it is ideal for all types of complex details.
- Musical instruments, mainly the wind: clarinets, oboes, guitars, castanets. Its resistance to humidity and, therefore, to saliva, makes it the preferred option of many musicians.
- Tool handles.