Commerical Names :
Macassar ebony, Indian ebony ( UK and USA ); Coromandel, Calamander Wood (UK)
The Celebes Islands .
General Description :
A heartwood with mainly straight grains. The textures is fine and even.
Dark brown to black. Bands of gray-brown, yellow-brown, or pale brown run through the wood.
Average 1090 kg/m 3 (68 lb/ft 3 )
Specific Gravity :
Mechanical Properties :
This wood is used mainly for decorative purposes where strength properties are of minor importance. Exceptionally heavy, dense, hard wood. The black heart tends to be brittle.
The timber is difficult to dry. The trees are usually girdled for two years before felling, and a further six months air dying in plank or scantling and stored under cover. It should be well protected against too rapid drying to avoid checking and degradation. There is a small movement in service.
Working Properties :
Due to the fact that the wood has a brittle nature, the material may be difficult to work with hand or machine tools. There is severe blunting of cutting edges. Pre-boring is necessary for nailing and it is difficult to glue. The wood takes an excellent finish.
Liable to attack by forest longhorn beetle and moderately resistant to termites. The wood is very durable and extremely resistant to preservation treatment.