Richard,
Someone correct my if I am wrong but it is the burl off the Nara tree, the nara wood itself is pretty. Most of the time it sales for $20 per lb but can be found for $12. I like afzelia burl which looks simalar and cost the same but always seems drier and lighter so it really cost less and has nevered cracked or warpped on me. I have a very pretty amboya peppermill I need to finish buff I and will post soon.
Bob