r/petrifiedwood

Found a couple of pieces in an abandoned barn like this. Amazing specimen, but why is post of it flaky?

I have this salt lamp in my room which I had placed a tealight under because the original light burnt out, I sit rocks I find around it in my window. I noticed there were orange salt crystals forming under my lamp which completely destroyed my candles battery. But the weird part is all my rocks are fine besides this piece of petrified wood. It cracked apart and has crystals growing all over it, the inside is solid black. Sorry if the pictures don’t show the crystals, it was hard to get them to show up on the camera but they’re all shiny and orange like the salt crystals so I’m assuming for some reason the salt started crystallizing on my petrified wood. Does any rock nerds know what reaction caused this? The petrified wood was the only rock affected. I just found this interesting and was wondering the cause.

Found with a stockpile left by previous owner at my mom’s house. So I have no idea where it’s from. Are there ways to tell?

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Found near the Green River Gorge in WA. It has a decent heft to it, about 350g. It doesn't scratch with a quarter( just leave a slight bit of quarter residue). Rubbing my finger on in it doesn't leave any black mark so I know it's not coal or charcoal. I can clearly see tight wood grain but that may just be my bias.

We often put poles in the ground and deal with alot of rocks but these just look different.

Found this walking near a river in Colorado and I think it is but first timer so what do you guys think?

Help identifying this found in Alabama.

Found one at the river and one in a parking lot rock pile! I'm not an expert but I feel pretty sure these are pet wood. What do you guys think?

Found this on a private lakeside property in the Missouri Ozarks. It’s quite heavy.

The first was found on private land outside of Wind Cave National Park in SD and the other in the Romanian Carpathian Mountains. Cross posting since we don’t know for sure if they are petrified trees or not.

I could be wrong but I think it crystalized and somehow kept it's growth rings.

Can someone explain to me what’s going on here? How did it get cleaved so cleanly? It’s perfectly flat on the one end.

I assume this is a limb cast? Could the white be a layer of opal and the rest of it agate? Hardness between 7-8.