Wood identification help – possible Aquilaria? (structural anatomy question)

Hi all,

I’m looking for help identifying this wood sample based purely on anatomical features.

This piece was stored in a small wooden box and appears relatively dense. It shows alternating darker and lighter bands along the grain.

Observations:

• The wood appears diffuse-porous rather than ring-porous.
• Darker zones follow the grain and seem to be concentrated in certain growth layers.
• I do not clearly observe obvious included phloem bands in the cross section.
• The contrast appears layered rather than radial from a single injury point.

Based on visible anatomical traits (pore structure, grain orientation, banding pattern), could this be from the genus Aquilaria?
Or does it more closely resemble another tropical hardwood?

I’m only interested in wood anatomy and botanical identification.

Thanks!