Obsidian is a volcanic mineraloid glass. It lacks the orderly internal arrangement of atoms required for a compound to actually qualify as a mineral. It generally occurs during extr… See more

While sheens in obsidian can often appear to be magical, they’re generated by very real phenomena. Gold and silver sheen, for instance, are actually the effects of minute amounts of … See more

For those who want to find some of their own, you’re not out of luck! Particularly if you happen to live in the Pacific Northwest. There’s a bit of a catch, and it’s the reason the actual … See more