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Showing results for tags 'fractured'.
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I recently bought this piece of fossil bone at a bookstore in Tucson AZ. My guess is that someone had originally bought it at the Tucson gem and mineral show and then sold or traded it at the bookstore. I don't know anything about its original geographic origin. I had a friend test it with his Geiger counter and it gives off a fair amount of radiation compared to the background. I thought it maybe could be a plesiosaur fin bone because of the way it flairs out but I honestly have no idea. Any help identifying what species this fossil bone came from would be greatly appreciated.