✅ SOLVED Grooved sinker Stone?

[r00t2400]

Hey I’m new so apologies if I’m doing this wrong. We usually find shark teeth and other fossils but everyone in a while find some Indian artifacts. I’m on the coast of South Carolina outside Charleston. I have seen grooved sinkers before online and in museums. When I spotted this I thought of them immediately. Anyone have any insight? Is it just a rock?
Thanks for any input
Dave
Can’t figure out how to make an attachment so here’s the pics on imgur. https://imgur.com/gallery/wvCMXmk


picks added [Jeff]

 

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[Tnmountains]

Really hard to say from the picture. It may be natural. Net weights are more common. They would use a natural stone also if it worked. If they made one it was usually from a decent grade of stone. Try posting a new picture in the North American artifact section for great advice.
Good luck and welcome to the site.

 

[flyadive]

Perhaps a Bola Stone

 

[Lost Signal]

It's probably a petrified clam.

 

[Lost Signal]

There's an example on this site...
Cooper River 7-2009

 

[Georgivs]

It's probably a petrified clam.

+1, looks like a clam fossil