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Can I Knap this?

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cowboy:
If you can spall that and heat them I'm sure they would yield some fine points. Plenty of utubes on how to spall, I like paleomanjim. $15.00 turkey roaster from Wal Mart works very well for most rocks.

DavidV:
I'm just starting too and that first rock looks exactly like what I have. It seems easy to flake raw but it's also gritty and crumbly.

I'm in Strafford, just east of Springfield.

ColtSmith:
I bought a turkey roaster that goes up to 450 will that work for this rock and other rocks? Thank you for all the replies! :)

cowboy:
There ya go, yep. Try to keep them an inch or thinner, roughly. 200 for a day to dry,ramp up 50 every four hours, hold at high for a day, ramp down same way. That's the safe way, I've done loads faster but have lots of rocks. I always pack wet sand around lid to seal after drying time, not sure that's necessary.

caveman2533:
remember to remove the pan and put the thinner pieces near the corners where it will get hottest. Cover it all with sand like Cowboy said. do not open it until the temp is below 150. Get at Walmart one of the turkey frying thermometers and stick it thru the lid into the sand, don't let it touch rock if you can help it. remember that the temp on the dial will be ahead of the stone. The stone temp will lag behind the dial setting, so don't panic and raise it  trying to keep it up with the dial. If you have a piece of pink insulation laying around place some on top of the sand, under the lid, without the paper.

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