damn john...that's a beauty! I tell ya, I've found some high quality sheen obsidian like that, and it is, in my opinion, the best obsidian out there. It doesn't seem as brittle as the smoky clear stuff, and certainly is a lot easier to knap than that Pumpkin obsidian garbage. I don't like pumpkin...it's way to brittle. But that high quality sheen? Oh man...it's awesome.