Opalized wood with visible growth rings

Image from i.redditmedia.com and submitted by Botatitsbest
image showing Opalized wood with visible growth rings

BugOnARockInAVoid on February 20th, 2018 at 05:33 UTC »

You could probably exchange that for some money.

Cranky_Windlass on February 20th, 2018 at 06:12 UTC »

Opals are formed when silicone dioxide deposits in a certain area over a long period of time via water channels(I think). So maybe this is a piece of wood that was buried under dirt/clay but had drainage going through it still? Maybe even a petrified tree that offered the silicone a place to collect. I'm only guessing, but it's beautiful regardless! Definitely worth some money

Edit: upon looking closer, the background seems to be some fingers, so it is a rather small piece.... Still, gorgeous!

express_sushi49 on February 20th, 2018 at 10:03 UTC »

Looks like a real-life Hearthstone.