DALBERGIA MELANOXYLON

Distribution
East and central Africa.

The tree
A small tree growing to a height of about 9m and a diameter of about 20cm.

The timber
The heartwood is dark purplish-brown with black streaks which usually predominate so that the general effect is nearly black. It is exceptionally hard and heavy, density about 1.2, seasoned, with a fine, even texture and a slightly oily nature.

Seasoning and movement
The timber dries very slowly and tens to split in drying, especially in the log. The application of a moisture-retardant paint to the ends of the timber at every stage is advised to minimize splitting. Once seasoned, however, it is slow to absorb moisture.

Durability
The heartwood is believed to be very durable.

Working and finishing properties
Considering its density, African blackwood has exceptionally good working qualities; it cuts smoothly and evenly, taking an excellent finish from the tool, as in turning and boring, and can be tapped for screw threads almost like metal.

Uses
African blackwood is generally considered the best timber for ornamental turnery, being superior to ebony for this purpose. For wood-wind instruments, also, it is preferred to ebony because of its oily nature and resistance to climatic changes. With the exception of cocuswood no other timber has been found which equals African blackwood for reliability, working qualities and the tone of the finished instrument. The wood is also used for turned goods such as brush backs, knife handles, pulley blocks and chessmen.