Popular Post Allen in MT Posted November 30, 2023 Popular Post Share Posted November 30, 2023 This rock I picked off the Yellowstone River in eastern Montana as it looked odd and then sliced it to see what was inside. ??? 13 Link to comment Share on other sites More sharing options...
beatup Posted November 30, 2023 Share Posted November 30, 2023 very cool find Link to comment Share on other sites More sharing options...
jasong Posted December 1, 2023 Share Posted December 1, 2023 Too cool, nice find. I've never seen something like that before and you are kinda in my neighborhood there on the Yellowstone too. If you find a name for it, post it back here? That would definitely be something to go hunting for the source! Almost wonder if it was agatized as part of a sea shell or something? Link to comment Share on other sites More sharing options...
Past Member Posted December 1, 2023 Share Posted December 1, 2023 That's very unique. I'm calling it the "Peacock Rock". Link to comment Share on other sites More sharing options...
Doc Bach Posted December 1, 2023 Share Posted December 1, 2023 To quote a cliche from my addled youth and hippy days....Trippy! Link to comment Share on other sites More sharing options...
machinesmith Posted December 1, 2023 Share Posted December 1, 2023 It looks like a calcified fossil. Nice find man! It's quite beautiful Link to comment Share on other sites More sharing options...
BigSkyGuy Posted December 1, 2023 Share Posted December 1, 2023 Looks like Montana agate to me, although I have never seen a pattern quite like that. The Yellowstone is a known source of agate. Link to comment Share on other sites More sharing options...
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