This is a bunch of what I hope is flint that I picked up along the Neosha River in Council Grove, KS over the holiday. How much of this might be usable to make a couple of points? Is the small stuff only good for practice? I tried using a screwdriver as a pressure tool to get some flakes off but not much happened. Of course I know zip about knapping so any advice would be greatly appreciated. TIA, PaulC
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