Common Name: Itikiboroballi
Scientific Name: Swartzia spp.
Wood Description: Itikiboroballi, derived from Swartzia spp., typically features a heartwood that is dark brown, reddish-brown, or nearly black, which can be solid in color or somewhat variegated. This heartwood is sharply demarcated from the sapwood, which is nearly white to yellowish, or pale grayish-brown to cream. The wood’s texture ranges from very fine to medium, with some descriptions noting a fine, even grain. The grain is usually straight to irregular. Itikiboroballi commonly exhibits a medium to good natural luster and is generally without a distinctive odor or taste.
Physical Properties: Swartzia spp. are known for their high density. The basic specific gravity (oven-dry weight/green volume) ranges from 0.87 to 1.02, with an air-dry density of 65 to 75 pcf (approximately 1041-1201 kg/m³). Average dried weight is reported as 935 kg/m³ (58 lbs/ft³). The Janka side hardness for dry material is exceptionally high, ranging from 3,325 to 4,060 lb. This genus is considered a strong contender for the title of the world’s strongest wood. The average toughness for green and dry material is 260 in.-lb. Shrinkage from green to oven-dry is radial 3.9% and tangential 7.6%, with volumetric shrinkage of 11.2%. Movement after manufacture is reported as high for some species within the genus.
Mechanical Properties: Itikiboroballi exhibits outstanding mechanical properties due to its high density. The bending strength (Modulus of Rupture, MOR) is 26,370 psi at 12% MC. The modulus of elasticity (MOE) is 3,630 (1000 psi) at 12% MC. Crushing strength is 15,440 psi at 12% MC. These values place Swartzia spp. among the strongest timbers, making them suitable for applications requiring extreme load-bearing capacity.
Uses: Given its exceptional hardness and strength, Itikiboroballi is utilized for inlay, parquet flooring, turnery, furniture, cabinetwork, and specialty items. It is also suggested as a substitute for ebony. Its properties make it suitable for turned objects and other small, high-value specialty wood items. The high strength and density make it a valuable timber for applications where durability and resistance to wear are paramount.