Pau Santo (Zollernia paraensis)

Pau Santo (Zollernia paraensis)

View More Images Below

Common Name(s): Pau Santo, Brazilian Blackheart

Scientific Name: Zollernia spp.

Distribution: Brazil

Tree Size: 65-100 ft (20-30 m) tall, 2-3 ft (.6-1 m) trunk diameter

Average Dried Weight: 70 lbs/ft3 (1,115 kg/m3)

Specific Gravity (Basic, 12% MC): .87, 1.12

Janka Hardness: 3,280 lbf (14,590 N)

Modulus of Rupture: 27,230 lbf/in2 (187.8 MPa)

Elastic Modulus: 2,588,000 lbf/in2 (17.85 GPa)

Crushing Strength: 13,850 lbf/in2 (95.5 MPa)

Shrinkage: Radial: 5.0%, Tangential: 9.6%, Volumetric: 14.7%, T/R Ratio: 1.9

Color/Appearance: Heartwood dark brown, sometimes with a grey or green hue. Sapwood is pale yellowish, and is sharply demarcated from the heartwood.

Grain/Texture: Grain tends to be interlocked. With a fine even texture and excellent natural luster.

Endgrain: Diffuse-porous; solitary and radial multiples; medium to large pores in no specific arrangement, few; mineral/gum deposits occasionally present; parenchyma banded; narrow rays, spacing normal.

Rot Resistance: Rated as moderately durable to durable; good insect resistance.

Workability: Moderately difficult to work on account if its density and interlocked grain. Natural oils may interfere with gluing and finishing. Turns well.

Odor: No characteristic odor.

Allergies/Toxicity: Although severe reactions are quite uncommon, Pau Santo has been reported to cause skin irritation. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Pricing/Availability: Very seldom available. Limited quantities of craft lumber or turning blanks may be available for a mid to high price for an imported hardwood.

Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.

Common Uses: Guitars (backs and sides), turned objects, and knife handles.

Comments: Sometimes called Brazilian Blackwheart, woods in the Zollernia species tend to be very dark colored, and very oily. The wood is sometimes used as a substitute for Lignum Vitae.

Related Species:

None available.

Related Articles:

None available.

Scans/Pictures: A special thanks to Steve Earis for providing the wood sample and turned photo of this wood species.

Pau Santo (Zollernia paraensis)

Pau Santo (sanded)

Pau Santo (sealed)

Pau Santo (sealed)

Pau Santo (endgrain)

Pau Santo (endgrain)

Pau Santo (endgrain 10x)

Pau Santo (endgrain 10x)

Pau Santo (turned)

Pau Santo (turned)