ATIBT Standard Name: Mora
Other Name: Nato, Dakama, Pracuuba
Wood Appearance: Mora (and Morabukea
which is similar in structure) heartwood varies from chocolate-brown
- Sapwood - wide with yellowish to pale brown colour
- Texture - coarse
- Grain - straight often interlocked and somewhat wavy or irregular
- Bole - 50-80 feet long, rounded or flattened, diameter 24-36
Physical and Mechanical Properties:
A very heavy, very hard wood, large movement, dries very slowly
with appreciable degrade. Outstanding strength properties, particularly
resistant to wear.
- Weight - 900-1000kg/m3 (56-68 lb/ft3 ) seasoned.
- Bending Strength -
- Modulus of elasticity -
- Compression parallel to grain -
- Shock resistance -
Natural Durability: Heartwood
very durable and extremely resistant to preservative treatment.
Mora is markedly fire resistant.
- Drying - Kiln Schedule B. Slow, must must be carried out carefully
because of risk of distortion and checking.
- Working - Difficult to saw, because of its density and interlocked
grain. With the same qualification it can be planed, finishes
smoothly, turns easily, splits with great difficulty.
- Assembly - Difficult to nail but holds nails and rail spikes
well. Pre-boring is necessary.
- Finishing - Staining and polishing satisfactory.
Uses: Best suited for heavy
construction work, jetties and foreshore work. Particularly suitable
for sleepers, wagon bottoms, and for both traditional and mosaic
flooring and shipbuilding.
Supplies: Very common in Guyana.
Abundant and regular supplies assured.