Chert

[jojo2676]

I got my hands on some chert from up by the Tennessee River. I know it needs to be heat treated but is there anyone out there that can give me instructions on how to do it? Maybe someone that has used this material before?

Thanks,
Joey

[Jaeger]

dont know anything about heating rocks but I was driving  today and saw some rocks in a cut of the hill for the road and I took a small one home and it broke pretty good with the bopper so I am going to go back and try to get some rocks big enough to chip.

[Bill Skinner]

Depending on where you were, it could be Buffalo River, Ft. Payne, Dover or Sonora chert.  If it is Dover, it can be knapped raw.  Bill

[mullet]

 If it is the Chocolate looking color I heat it at 400dgs in a small toaster oven over night.

[knap_123]

8 hrs dry time 450 cook time for about 8 and cut the cooker off. some fort payne needs much higher temps depends on the quality.  if its black dont cook it!

[leapingbare]

like knapp123 said if its black dont cook it. but the other cook it at about 500* for 5-8hrs.
 All the chert in West T.N is Ft.Payne  but it comes in diff forms. Buf river , Dover , Horse creek.. just to name a few. and sometimes you can find all in the same creek. most all Ft.Payne chert can be heated except Dover chert.. your dover chert will be a dark gray of black.