Petrified wood containing turquoise opal found in Queensland, Australia.

My_Unit_Is_A_Hog on June 15th, 2020 at 01:00 UTC »

I’m tripping on this

Black_Sun_Rising on June 15th, 2020 at 01:23 UTC »

Goddamn that's so freaking cool.

Jazzfly67 on June 15th, 2020 at 01:52 UTC »

ELI5 - how does that happen?