On Saturday my neighbor came over with his KX080 offering to pull out stumps from my yard for free. The ground was nicely frozen for possibly the last time this winter. So my weekend plans changed to say the least. I had about 7 stumps to take out and 3 more then were attached to trees. I cut down the 3 trees while he worked on the stumps. One of the trees was a black walnut that had this interesting heartwood. Almost wish I'd had had it made into boards. The base was only 16" or 18" though. I have cut down a few other walnuts but never seem it this dark. In person it looked darker tthan the photo. Splits revealed beautiful curly grain. Is this a common thing?