1. Intuitive Features:
The loose porous nature of this wood makes it stand out. The growth rings are either not visible or barely noticeable. The newly exposed heartwood typically exhibits a deep purplish-red or dark reddish-brown hue, often accompanied by striking dark brown or chestnut-colored streaks. The vessel pores are faintly visible to the naked eye and are known to contain black resin. The diameter of the radial vessels can reach up to 244 μm, averaging around 104 μm. The number of vessels is sparse, ranging from 2 to 13 per mm². The axial parenchyma is quite prominent, forming mainly marginal bands that are thin (1 to 4 cells wide) and occasionally appear reticulate or ladder-like where they intersect with the rays. These bands are sparsely winged. The wood fibers have very thick walls. Under a magnifying glass, the wood rays become visible; their markings resemble wavy lines. The ray tissue appears as either single columns (either singular or multiple) or as double or triple columns. The wood carries a mildly acidic or faint aroma. Its structure is fine, and the grain is usually straight. Its air-dry density ranges between 1.01 to 1.09 g/cm³.
2. Microscopic Features:
When the wood of this tree is cut or sanded, it releases a spicy scent that has a tangy, sour note. The color of the wood is generally reddish or deep red, but when exposed to air, it tends to darken into a deep crimson. The wood itself is solid and heavy, with a fine texture and a high oil content, making it capable of sinking in water. The grain pattern is intricate yet delicate, small and densely packed. Visually, the wood grain presents a simple yet elegant aesthetic, with dark brown or black parallel stripes that resemble silk threads. The trunk features solitary vessels with a few diameters within the vessels (typically 2 to 5), and occasionally forms vessel groups. The wood fibers possess extremely thick walls. On the transverse section, the vessels appear oval-shaped. The axial parenchyma is abundant, and its width varies between 1 to 4 cells. The wood rays overlap, and the ray tissue displays both single-columnar and multi-columnar patterns. The single-ray heights range from 1 to 14 cells, with single rows being more common and multi-row rays appearing in widths of 2 to 3 columns.
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