Cocuswood, Brya ebenus is a very dense dark reddish brown hardwood with dark grain from Cuba and Jamaica. It is very durable but relatively easy to work.

The trees still grow but exports are essentially non-existent with samples and turning blanks being exceptionally rare, and as a result likely to be very expensive. Cocuswood is considered one of the finest of tonewoods, but due to its extensive use for woodwind instruments in the 19th century has to all intents become commercially exhausted. 

I have been incredibly lucky to obtain 16 partially turned and bored blanks form Robert Bigio which came from Rudall Carte's stock that dates these pieces at between 80 and 170 years old.