Need some help on this point

[Polk]

Another "what is this?" from my friends inherited collection, likely Iowa/Missouri. The tip has been reworked. It's heavy, so maybe a knife? And does it look authentic? Thank you.

[Charles Jones]

Could be a Kampsville?

[SurfaceHunter]

Looks real to me but idk the type or material.

[UpNorth]

Cool piece, must have been a beast one day.
can’t help with a I.d.... definitely authentic...👍

[antmike915]

Agree with above comments

[Artifascination]

The material looks like mozarkite from the Missouri area. Cool piece!

[utilized flake]

Looks kind of buck creek...but maybe the type is out of area?

[Polk]

Thank you for all your input on this! I think Mozarkite is a real possibility. I hadn't considered buck creek, but you are right, this piece could have originated farther away. So I am thinking buck creek, kampsville, Adena Robins, or stone square stem. That may be as close as I get to knowing for sure. I'm still pretty new at identification, so appreciate all help and input.