Labradorite looks very cool.

>>5017569
Lapidary clubs are a thing. I'm not that into stones, but I chatted with some people from one once. They collect rocks, discuss geology, and make jewelry. Seemed like cool people and have a foot in both science and art.

>>5017609
>hence your diamond tipped tools
Oh, I wondered about that, like how diamond tipped tools could possibly be affordable and whether it was straining a super rare resource.