Is this petrafied wood?

[Bkfinds]

also found this rock at the same place, still not sure what it is

 

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[Ponchosportal]

Yes - weathered and worn and not the best quality ...... but yes it is.

Since I commented you edit the post to include additional material which is not petrified wood. My comment only applies to your original post.

 

[DDancer]

Yep, I second Poncho on the wood.