what is it??

[ink-a-alot]

I found this on my the lake i live on back in the 90s, i found at an old Indian camp site where i have found all kinds of arrowheads and broken potery.. anyway i have never seen a rock like this so i kept it in hopeing that i could find out what it is. hope yall can help me out..

 

[ink-a-alot]

I found this on my the lake i live on back in the 90s, i found at an old Indian camp site where i have found all kinds of arrowheads and broken potery.. anyway i have never seen a rock like this so i kept it in hopeing that i could find out what it is. hope yall can help me out..

or it could just be a rock lol.

 

[savant365]

something for size comparison and some different angles would help.