petrified wood?

[VAnoob]

Found this in the Iron Mountains of Southwest Virginia in Carroll County. It was on the surface of the ground. At first thought it was a piece of wood, which is probably why my mind went straight to petrified wood when I realized it was stone. It has rings, like growth rings of a tree, but I don't have the magnifying tools to make out any smaller structures within the rings. The outer surface also has a barklike texture. Am I right? 

[Rockwood]

This looks more like metamorphic rock. The structure would be related to the forces that raised those mountains. 

[doushantuo]

maybe a bit of pillow lava

edit: it might EVEN have cyanobacterial origins

Edited May 28, 2023 by doushantuo

[Rockwood]

29 minutes ago, doushantuo said:

maybe a bit of pillow lava

edit: it might EVEN have cyanobacterial origins

That's quite a spread of possibilities. I can't really rule them out though.  

[patelinho7]

Looks like gneiss if you want a specific rock ID

Edited May 28, 2023 by patelinho7

[VAnoob]

Thanks for the help! Gneiss definitely seems right after doing a little reading.