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Showing results for tags 'weird rock'.
Found 4 results
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A friend found this stone west of the Missouri in SD. It's now in my possession. There's one very visible spiral shell and what I believe are fragments of more scattered throughout, plus some bonus crystalline spots and something funky going on next to them (pic 4). I have no idea when it dates to, but another rock found nearby is probably Ordovician. However, according to the friend, they were all deposited there by the river more recently and were near the surface, so context is pretty lacking. As you can see, the rock itself is pretty weird too, especially on the back. Answers to any of my questions (what the fossils are, how old it is, what is going on with the rock) would be greatly appreciated. Thanks!
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Hi all, I found this odd rock when I was out fishing yesterday. Seems to be chert, with small tubes (some sort of crystal) running all through the rock. I have found Mississippian age fossils in rock from the area, but I have never stumbled upon a stone like this. If anyone is familiar or knows what geologic process this is, I would love to know more. Thanks!
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Hi, What is this? It's about an inch and a half rock. Thank you.
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So I found this pretty rock and felt the need to bring it home. Can anyone tell me why it formed like that?
