Ken polished some of my dad's "Yellowcat Bark"!
(Avery from Oregon also polished some. See it at:
Compare this with Avery's cabs and you can see that, since all of these rocks are "casts" (the agate just filled the interior of a hole in the ground shaped like wood) , there is quite a bit of difference between Ken's cabs and Avery's cabs.
But it's alllllll good! See my essay, Yellow Cat Wood? Or Yellow Cat Bark?