What is this ???

[cody milam]

SO I was at lake Barkley Kentucky doing some fishing and noticed something odd in the water
It's a stone with odd circular shapes in it that remind me of a worn down tooth which makes me thing maybe some teeth got fossilized in a rock.
I honestly have no clue and when it comes to these things I'm more often wrong then right but anyway all help appreciated

 

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[Ninjafossils]

Just looks like some interesting minerals in sandstone. Not a fossil.