I have a 'fossil tooth' that I purchased from some scuba divers for $25.00.
Its supposedly a megalodon tooth, so I thought that was too cheap for something so old..but I have heard they aren't uncommon to find. My question is, how do you tell if it's a real fossil? I'm sure a paleontologist could spot a fake from a mile away. But I have no knowledge of fossils and any information would be greatly appreciated. It's extremely fascinating. I have a photo also. Thank you for your time.

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sorry no-one seems to know the answer to your question.