Depends on the nature of the "scrap pile" and how dense is dense and how hard is hard.
Is the scrap pile in a traditional woodworking shop? If so, I would have to go with Mahogany, largely based on the long, open pores on the left face of the board.
But mahogany is not terribly hard or dense. And the grains are only rarely interlocked.
Could the scrap pile include some locally harvested wood?
If so, I would have to go with Osage Orange.
Many, many years ago, I harvested some Osage Orange in the rocky Ozark foothills of Arkansas that looked almost exactly like this. There was no question what I harvested was Osage Orange, because there were still some hedgeapples hanging on the trees.
But instead of being the usual almost-fluorescent yellow, it was a ruddy reddish brown color. And the growth rings were so thin that they were almost impossible to distinguish, except when you looked at the end-grain.
I owe both of these qualities to the fact that the trees were growing in very rocky, dry soil on a scrub cattle farm, there in Arkansas.
But it was dense, took five of us to load a single 14-inch-diameter by 12-foot-long log onto a pickup truck ... and we loaded several similar logs that same day. That pickup was really sagging on the drive home, I must say.
I was making a lot of Osage longbows at the time, and I didn't expect much from this particular batch of Osage, due to the paper-thin growth rings and unusual color, but it still made some really nice bows.
Just didn't look quite like any other Osage I had ever worked with.
