Hopewell Core?

[autographcollector11]

Found in a site that produced several hopewell pieces. Looks like a possible core-what do you think? From Illinois.....

 

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[quito]

I don't think core, utilized flake more likely imho

 

[rock]

Test rock I find so many of them I dont even bring them home anymore. Woodland to Mississippian it the age of the ones I find.