Porosity: diffuse porous
Arrangement: solitary and radial multiples (sometimes occurring exclusively solitary, and/or in a diagonal pattern)
Vessels: large, few; tyloses and yellowish heartwood deposits common
Parenchyma: vasicentric and banded (marginal)
Rays: narrow; normal spacing
Lookalikes/Substitutes: When the pores are predominantly solitary, and in a diagonal pattern, the endgrain can look very similar to species of Eucalyptus—though the genera does’t have any overlapping geographical presence. (However, Preciosa’s scent, tyloses, and heartwood fluorescence can help to distinguish it from most eucalypts.)
Notes: Preciosa, like many Aniba species, will fluoresce a greenish color under blacklight illumination.