Found in this in the lake today

[heartsongs]

Found this in a inland natural lake in mid Michigan. Would anyone happen to know what period it is from?

 

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[gordonquixote]

Looks like a natural rock....

 

[Brother Al]

Looks like a natural rock....

It could also be stone? Lol, sorry..... Just couldn't help myself....

 

[Msbeepbeep]

Try posting it in the: Artifact forum (7 th down) in sub form: Native American Artifacts.
They may be able to get more advice on it.

Interesting find.