I used a lot of it when I built my last boat, a deep keeled motor boat of 28ft 6".
It is hard and so dense it sinks, ideal for keels and engine beds. The piece I had, I had cut into 5.5" square sections so I could machine it from there. It is so hard from time to time there were sparks from it and the carbide toothed 5 feet diameter sawblade driven by a ford 6D diesel engine that was used to cut it.
I have turned some in my Holbrook lathe to make 6 foot staffs. They can be just under and inch diameter and 6ft long and will take my weight to walk across. So straight grained a 2" by 1" x 18 ft length can have the same grain from end to end. So strong the staffs I made will go through Japanese oak staffs if used competitively
You may find it blunts tools very rapidly but Ideal for making mortars and pestles. Superb for making electric guitars.
What sizes do you have? I have lots of Oak, Ash and some acacia (robinia) in logs of about 2 feet long. ideal for cutting down to make segmented bowls or if you want firewood. please don't burn teh greenheart, is very difficult to get these days. My supply is over 100 years old. My wood here is mostly 6-8" in diametre as it is either coppiced or pollarded wood, not whole trees although from time to time I get one of those.
