Gaboon Ebony
Diospyros crassiflora
Also known as: African Ebony, Gabon Ebony, Black Ebony
Gaboon Ebony is one of the most prized and dense woods in the world, known for its jet-black heartwood and exceptional polish. Used for piano keys, violin fittings, and fine turnery, it is now CITES-listed due to overharvesting.
Botanical Profile
Diospyros crassiflora is a small to medium tree native to West and Central Africa, including Gabon, Cameroon, and Congo. It typically reaches 15-20 meters. The genus Diospyros includes persimmons and several ebony species. Growth is slow, producing extremely dense heartwood.
Physical Properties
Heartwood is black to very dark brown, sometimes with gray streaks. Sapwood is pale yellow to gray. Density averages 995 kg/m³ with a Janka hardness of 3,080 lbf. Fine, even texture with usually straight grain. Sinks in water.
Workshop Notes
Blunting Effect
Very high - extremely hard wood dulls tools quickly
Gluing Advice
Good with proper preparation
Finishing
Excellent - takes mirror polish
Steam Bending
Poor - very stiff
Historical Context
Gaboon Ebony has been prized for centuries for piano keys, violin fittings, and luxury items. Overharvesting led to CITES Appendix II listing in 2011. Sustainable sourcing requires verification of legal origin.
Technical Specs
Black to very dark brown heartwood; pale yellow to gray sapwood; often with gray streaks
Endangered - CITES Appendix II; overharvesting has severely depleted populations