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rock collecting Saturday...

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mullet:
If what you did doesn't help, then try heating it a little longer. Right now it's a guessing game.

1442:
that looks a lot like what I gathered at Kentucky Lake once while we was fishing there.
It's like hard dry mud and abrading would just grind it away its so soft compared to good chert.
I just worked this out of one the other day thinking it was something else when I grabbed it.

Parnell:
Don't know if it'll do but still pretty dang cool, Paul. 

paulc:
Of the rock pictured on the chair this is all I have left...I think part of my problem is I don't know when to stop ;D   There was one piece with a pre-existing hinge that I just had to pop off but it took most of the stone iwth it.  Really would have been a functional arrowhead with the hinge and now I got nothing...oh well. Live and learn.

The two pieces on my knee may yet have a point in them, they're still big enough if I can get them thinned down some more.  Not sure if I should cook them more, they do fracture okay, pretty linear so I am getting flakes off them.  But the stone is not as slick and glass-like as a lot of what I have purchased has been...would more time at 450 help?  Or should I get them hotter?  Or leave well enough alone-they do flake but its pretty tough working them.

thanks, Paul

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