Not sure... preform?

[Amber111]

Need help with this puzzler. I think it may just be a rock but it was found in a known Native Settlement in Ca.

 

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[quito]

Mighty crude, I don’t think it’s a pre-form.

 

[Tdog]

I think it's just a rock too. Keep looking.

 

[scotto]

Just a rock.

 

[The Grim Reaper]

Amber, I'm not seeing evidence on it that says it was altered or utilized by man.