Thread: Hone identification

No way to say for sure, as Peter mentioned, but I do have a labeled Silkstone that shares the same naturally formed bottom. The other characteristics fit also (slight sparkles, slurry color). Silkstones are very high density - they "ping" when tapped with something like a hard screwdriver handle or razor spine at a very high pitch (not quite at Arkansas level but pretty high) to give you another check. So it is possible that you may have a Silkstone, but by no means positive.