MyGodMagma Posted July 27, 2017 Share Posted July 27, 2017 I have another smaller piece of this black (coral?) with this vivid yellow in it, and it also has those yellow dots around the edge. This specimen has those interesting whorls in the yellow that remind me of beetle wings for some reason. Ideas? "Excellent!" I cried. "Elementary," said he. Watson and Holmes in "The Crooked Man" ~ Conan Doyle Link to comment Share on other sites More sharing options...
izak_ Posted July 27, 2017 Share Posted July 27, 2017 This is interesting. My first guess would be coral. Can we please have some pictures while its dry? (was wrong). Very cool looking (?) btw! Link to comment Share on other sites More sharing options...
ynot Posted July 27, 2017 Share Posted July 27, 2017 This looks like a metamorphic siltstone. Not a fossil. I see no evidence of coral structure. 1 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Doctor Mud Posted July 27, 2017 Share Posted July 27, 2017 Yes - metamorphosed siltstone. From the same site as the agates? This would be an agate inclusion in the host or parent rock. 2 Link to comment Share on other sites More sharing options...
Al Dente Posted July 27, 2017 Share Posted July 27, 2017 I think the original rock was an oolitic limestone that has been replaced by chert. 3 Link to comment Share on other sites More sharing options...
MyGodMagma Posted July 29, 2017 Author Share Posted July 29, 2017 Thanks so much, I'm off to read up. ~caroline "Excellent!" I cried. "Elementary," said he. Watson and Holmes in "The Crooked Man" ~ Conan Doyle Link to comment Share on other sites More sharing options...
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