I was going to say no, I had looked. But then I looked again and found a Tulsa Hard Rock chip with the Las Vegas chips rather than with the other Hard Rock chips. They are for sure ceramics with a nice non-slip texture to them. Just like the other Hard Rock chips.
On an unrelated note, I see solid evidence I have misplaced a chunk of my PCA set and I'll need to go on a quest to find them. . . .
Thanks -=- DrStrange