Jim could you show me on a video how to heat treat flint the common man way. I hear some people use some kind of small oven or something. I found some kind of chert I think it is here in Florida but would like to heat it to make it more glass like. Always I thank you sir for the knowledge you share with us.
@2962nicktucker Yes, most modern knappers use turkey roasters or kilns to heat treat chert. You can heat treat rock in the ground by laying it in a shallow pit, preferably spalled or in thin pieces. Lay the chert in a bed 2 or 3 inches deep or thick. Cover the chert with several inches of dry sand or dry dirt. Build a small fire on top, or use BBQ charcoals. Keep the fire going for several hours at least and let it burn out. Dig up the chert the next day. Heat treatment varies, but it does work!
@2962nicktucker I make all my tools and collect my rock out in the field. Lots of flintknapping sites to buy rocks and tools from, just do a google search. Also, Paleoplanet forum is a great place to check with other knappers for good sources of tools and rocks....
@jaocheu I've been wondering about that too! Any flat stone could have been used but it might be hard for archeologists to identify as to what it was used for. That is part of the problem, people of the past used techniques and tools that we still have not figured out yet, so identifying archeological objects can be a problem. Experimental archeology and flintknapping can shed some light....jim
@paleomanjim I guess I'll have to keep an eye out for especially flat stones at digs, that don't have any marks indicating they were used as hammer stones. I don't suppose the sandwich technique has left any tell tale marks on the sandwich stone from the flaking? Or maybe an accidental miss and the billet hitting the sandwich stone instead of the point and leaving a mark.
@jaocheu The first flat stones I tried out I was just placing the leather in between and actually using the flat stone as a hammerstone so in a dig it would just look like any other hammerstone. I also tried using the flat stone without leaher but there is too much shock to the biface. Mike Dothager uses red ocher which does not require any leather, not sure if flat pieces of red ocher have been found?
After watching this second video, it seems the step fracture problem was with the cortex because you are getting nice long flakes now that the cortex is gone.... so never mind the question... :)
Thanks for posting another great couple videos. Dan
@gotrocksinhead I think as it got thinner I adjusted to the toughness of the stone, and the weight of the sandwich stone really kicks in at the later stages...., but the cortex is kinda unpredictable also...jim
Really good to see your technique (on video) that you've discussed. That anchor stone seems to make a difference especially when removing wide, long, thin flakes. I'm goint to have to steal some of this...
Jim could you show me on a video how to heat treat flint the common man way. I hear some people use some kind of small oven or something. I found some kind of chert I think it is here in Florida but would like to heat it to make it more glass like. Always I thank you sir for the knowledge you share with us.
2962nicktucker 3 weeks ago
@2962nicktucker Yes, most modern knappers use turkey roasters or kilns to heat treat chert. You can heat treat rock in the ground by laying it in a shallow pit, preferably spalled or in thin pieces. Lay the chert in a bed 2 or 3 inches deep or thick. Cover the chert with several inches of dry sand or dry dirt. Build a small fire on top, or use BBQ charcoals. Keep the fire going for several hours at least and let it burn out. Dig up the chert the next day. Heat treatment varies, but it does work!
paleomanjim 3 weeks ago
Jim I have a question for you. Where do you get your hand pads from and where is the best website to buy flint? Thank you and keep the vids coming
2962nicktucker 4 weeks ago
@2962nicktucker I make all my tools and collect my rock out in the field. Lots of flintknapping sites to buy rocks and tools from, just do a google search. Also, Paleoplanet forum is a great place to check with other knappers for good sources of tools and rocks....
paleomanjim 3 weeks ago
dude you make the best lookin arrowheads i swear
hogcaller143 1 month ago
Happy New Year 2012
MrSchpankme 1 month ago
This has been flagged as spam show
Just letting all my subscriptions no that I will no longer be subscribing as youtube is now awful sorry
bigfatcahoonas 2 months ago
were do u get those hand pads
YoungHunter54 3 months ago
@YoungHunter54 The pad on my leg is plain leather. The sandwivch rock is leather glued to a smooth sandstone.
paleomanjim 2 months ago
Comment removed
YoungHunter54 3 months ago
Very slick!
djbarryiii 10 months ago
Hi Jim,
Great vid as usual. Is there any evidence of abo use of the sandwich technique?
jaocheu 10 months ago
@jaocheu I've been wondering about that too! Any flat stone could have been used but it might be hard for archeologists to identify as to what it was used for. That is part of the problem, people of the past used techniques and tools that we still have not figured out yet, so identifying archeological objects can be a problem. Experimental archeology and flintknapping can shed some light....jim
paleomanjim 10 months ago
@paleomanjim I guess I'll have to keep an eye out for especially flat stones at digs, that don't have any marks indicating they were used as hammer stones. I don't suppose the sandwich technique has left any tell tale marks on the sandwich stone from the flaking? Or maybe an accidental miss and the billet hitting the sandwich stone instead of the point and leaving a mark.
jaocheu 10 months ago
@jaocheu The first flat stones I tried out I was just placing the leather in between and actually using the flat stone as a hammerstone so in a dig it would just look like any other hammerstone. I also tried using the flat stone without leaher but there is too much shock to the biface. Mike Dothager uses red ocher which does not require any leather, not sure if flat pieces of red ocher have been found?
paleomanjim 10 months ago
After watching this second video, it seems the step fracture problem was with the cortex because you are getting nice long flakes now that the cortex is gone.... so never mind the question... :)
Thanks for posting another great couple videos. Dan
gotrocksinhead 10 months ago
@gotrocksinhead I think as it got thinner I adjusted to the toughness of the stone, and the weight of the sandwich stone really kicks in at the later stages...., but the cortex is kinda unpredictable also...jim
paleomanjim 10 months ago
Pretty cool stuff Jim
FlintknapperJimmy 10 months ago
Thumbs up Jim, thanks for more great insight.
touchnova 10 months ago
Hey Jim, I like using a thin 'dual padded' sandwich rock! Thx
MrSchpankme 10 months ago
Really good to see your technique (on video) that you've discussed. That anchor stone seems to make a difference especially when removing wide, long, thin flakes. I'm goint to have to steal some of this...
AllergicHobbit 10 months ago
Awesome idea.We have alot of tough knapping stones here in NY and if you dont set them platforms just right CRACK! *****
AwakenedBuddhist 10 months ago
wow them flakes look like real paleo flakes i like this that your not using copper and files you must be part Indian
swifton1 10 months ago