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A Couple Knives

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Zuma:
Mexican Green  is somewhat rare .  The 80 lb. spall I got was totally dehydrated.
It would splinter into a million needles just abrading the edge. I have had
some dried out dacite. A little heat helps. Most lava has seen 3,000 degrees
so how can 500 hurt?
Zuma

Ryan Jacob:
So it helped make it less brittle? Ooooh, now I wonder if soaking flakes before knapping would make it more durable

Zuma:
The theory behind soaking or licking flakes before
detachment is to fill in any tiny voids so the flake
force is uninterrupted. ??? Soaking is good. Some bury material.
 ???
Zuma

Trapper Rob:
Nice work Don.

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