Chert question Knappers?

[crj1968]

Hey folks I've posted this before (knife / scraper)

I have found similar pieces maybe not so well formed but also have has this same smooth "finger" channel in them. (thumb in this case)

Does anyone know if that is a natural break and they work around it or is it formed?

 

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[monsterrack]

That is just a piece that comes from knapping and no the channel as you call it, is from reduction of a larger piece.

 

[crj1968]

That is just a piece that comes from knapping and no the channel as you call it, is from reduction of a larger piece.

Thank you sir! that explains many chert pieces I have found.

 

[unclemac]

but none the less useful...i have many pieces that find my hand or finger tips "just right"...it seems that the right material makes some freakishly perfect thumb/finger marks.

 

[crj1968]

but none the less useful...i have many pieces that find my hand or finger tips "just right"...it seems that the right material makes some freakishly perfect thumb/finger marks.

Yes, I know what you mean....this one even has a perfect indention on backside to put forefinger into. Super-grip!

 

[rock]

Flake scraper imo