Found in a Kentucky creek by me a few days ago, just looking for some possible ID. Appears to be some sort of fossil to me at least. Thanks, Aaron
Kind on reminds me of a mastodon tooth. Some of them have striations like on your piece. I'm just guessing, no real knowledge.
It could also be a fossil of a fossil. Meaning it is an imprint left when the organic matter decayed.
Cool find!