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Cooking rock

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Chippintuff:
I just noticed you are cooking flint river. My experience with that stuff is don't take it over 400 till you have checked a couple pieces. It is gorgeous to see and fine to knap after cooking.

WA

caveman2533:
when I used a turkey roaster I used a couple of the long stem deep fry thermometer for frying turkey. drill a couple holes and place two or three, along the edge and near center, and allow like was said earlier, time for temp to stabilize after making an adjustment, usually several hours.

bjrogg:
Second try got a little more aggressive cooking my Flint River. I only cooked about 10 nice spalls but they turned out nice. Got a red color change on outside of stone and flaked much nicer. My brother was very happy with results. I'm only curious if color would penetrate deeper with longer soak, but don't want to chance over cooking unless someone with more experience tells me if will. Thanks for advice hopefully get some pictures of points up soon

Zuma:
Good deal BJ
The color is a good indication of alteration.
If you have a nice gloss I would not try to heat
the rock beyond what you have accomplished.
Can you post some before and after.
I'll see what I can find.
Zuma

bjrogg:
Thanks Zuma I'll try to do that when I get a chance. I had one point I made turned out really nice but I broke it trying to corner notch it. My brother made a couple nice points. I could see by color change that heat had changed stone. I worked really nice. I think if I get chance will cook some more next week but gonna have to get wife's turkey toaster back soon or she'll miss it for party.

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