These boards are HEAVY.
And I'm not 100% sure what they are.
If I had to venture a guess, I would lean toward toward this being Purpleheart, or as it is sometimes called - Amaranth. (Botanical Name: Peltogyne)
So I cut a small piece from the end of one of the boards, and am sending it to the Center for Wood Anatomy Research, a department within the USDA Forest Service. I did this a few months ago and was pretty shocked at what they told me.
The last time, it took about six months to get an answer from them. If these boards turn out to be Purpleheart, it will be worth the wait. The bigger question is - what will I build with them?