Palo Santo (Bulnesia sarmientoi)
Bulnesia sarmientoi • Exotic/Tropical
Grain Pattern
Interlocked Grain. The sample exhibits a wavy and irregular pattern typical of wild-grown tropical hardwoods, with fine-textured rays and visible spiral growth in the cross-section.
Color Description
Heartwood ranges from olive green to chocolate brown or nearly black, often with dramatic streaks of yellow or orange as seen in this sample. It darkens significantly with age and light exposure. High natural luster and oily appearance even when unfinished.
Hardness Rating
4,500 lbf (Extremely Hard). One of the hardest woods in the world, significantly harder than Lignum Vitae alternatives.
Durability Rating
Very Durable. Exceptional resistance to rot and insect attack due to extremely high natural oil and resin content.
Common Uses
Essential oil production (incense), turning, small specialty wood items, tool handles, boat bearings, and high-end carvings.
Geographic Origin
The Gran Chaco region of South America (mainly Argentina, Paraguay, and Bolivia).
Market Value & Sustainability
Estimated Market Value
$15.00 - $30.00 per board foot, often sold by weight due to high density and CITES restrictions.
Wood Age Estimate
Based on the oxidation of the orange-toned areas and the depth of the checks/cracks, this sample is likely 5-10 years post-harvest.
Sustainability Status
Listed in CITES Appendix II and classified as Endangered by the IUCN Red List; trade is strictly regulated.
Workability
Difficult to work due to extreme hardness and high oil content which can clog sandpaper and interfere with glue. Tends to dull cutting tools quickly but turns and polishes exceptionally well.
Notable Features
Highly fragrant with a sweet, citrusy scent when cut or burned. Known for its 'holy wood' ceremonial uses and high density (it sinks in water). Highly allergenic dust.
Finish Recommendations
Best left unfinished or with a light wax to preserve the natural fragrance. The high oil content makes film-finishes like polyurethane or lacquer prone to peeling or failure.
Identification Confidence
High. The unique orange-to-olive color transitions, oily surface texture, and characteristic 'feathered' interlocking grain are definitive indicators of Bulnesia sarmientoi.