What's IS this?
I've got this slab I found at a flea market for 10 bucks. The guy was an old school wood worker, used nothing but hand tools, most of them he had made. He went through his stacks of wood with me and showed me which ones were "ready". I did not ask if they were air or kiln dried, so I have no idea. Got it home where it sat for probably a month and a half before I got to it. Pulled it out, got it all smoothed down, cleaned a most of the bark off, then I left it overnight. In the morning, I found all these little black spots. Any idea what they are? I planned on sealing it up and using it for the top of a cabinet.