Category :    Heavy Hardwoods

Species

General Characteristics

Sapwood well defined; colour of heartwood yellow-green when freshly cut, weath¬ering to dark tan-brown; planed surface lustrous; often with vague stripe figure; texture moderately fine and even; grain interlocked; hard to cut across grain; air dry density ranging from over 915 to 980 kg/m³ (57 to 61 lb/ft³); very durable even under adverse conditions.

Structure

Growth rings absent.
Vessels with simple perforation; me-dium-sized; moderately numerous; mostly solitary; others in radial pairs and multiples of 2 to 4; evenly distributed without any clear arrangement; filled with tyloses.
Wood parenchyma abundant; both apotracheal and paratracheal; apotracheal type consisting of irregularly spaced bands of variable thickness and short closely-spaced, tangential lines extending from ray to ray. Paratracheal parenchyma sparse; as incomplete narrow borders; not clearly vis¬ible with a lens.
Rays moderately fine to medium-sized; visible to naked eye on cross-section; not conspicuous on a radial surface.
Ripple marks characteristics and very distinct.

Other Features

Burning splinter test: Splinter burns to ash.
Froth test: Negative. Froth test: Negative.

Uses