THAT’LL BUFF RIGHT OUT!....................
There’s a very nice example of an obsidian hand mirror, dug up in what’s now Syria I think, neolithic in date, about 7000 years old. I’m sure I’ve brought it up before. Last time I looked for an online image and, plllt, bupkis. Hmm. Might be 8000 years, apparently it came from Catal Huyuk.
https://search.brave.com/search?q=neolithic+obsidian+hand+mirror