jnicholes Posted January 3, 2023 Share Posted January 3, 2023 Hi everyone, I was on my way to my doctors appointment. I was walking to the door, when this caught my eye in the gravel. I thought it was wood at first, but I was mistaken. It’s definitely a rock. It was found in Twin Falls, Idaho, near the sidewalk. I’m looking for confirmation. Is this petrified wood? If it is, it’s my first find of 2023! Jared Link to comment Share on other sites More sharing options...
FranzBernhard Posted January 4, 2023 Share Posted January 4, 2023 Looks more like slikensides / slikenfibers. Franz Bernhard Link to comment Share on other sites More sharing options...
Rockwood Posted January 4, 2023 Share Posted January 4, 2023 I'm not convinced by this small sample that it is wood. My brother lives in Nampa though, and he is often unimpressed by the quality of the wood he finds. Knowing the source of the gravel could help. Wood is usually relatively common where it is found. Link to comment Share on other sites More sharing options...
jnicholes Posted January 4, 2023 Author Share Posted January 4, 2023 10 hours ago, FranzBernhard said: Looks more like slikensides / slikenfibers. Franz Bernhard What exactly are those? A type of fossil or a type of rock? Link to comment Share on other sites More sharing options...
Rockwood Posted January 4, 2023 Share Posted January 4, 2023 35 minutes ago, jnicholes said: What exactly are those? A type of fossil or a type of rock? It forms in faults, where tectonic movements are shifting crustal plates relative to each other. Fluids deposit soluble minerals in the crack. 1 Link to comment Share on other sites More sharing options...
jnicholes Posted January 4, 2023 Author Share Posted January 4, 2023 Just now, Rockwood said: It forms in faults, where tectonic movements are shifting crustal plates relative to each other. Fluids deposit soluble minerals in the crack. I see now, thank you. Not that I look at it, you may be right. Link to comment Share on other sites More sharing options...
FranzBernhard Posted January 4, 2023 Share Posted January 4, 2023 2 hours ago, jnicholes said: What exactly are those? A type of fossil or a type of rock? @Rockwood already said it all: 1 hour ago, Rockwood said: It forms in faults, where tectonic movements are shifting crustal plates relative to each other. Fluids deposit soluble minerals in the crack. Thank you! Franz Bernhard Link to comment Share on other sites More sharing options...
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