the anvil stone needs to be flat i do bipolar purcussion all the time because my local chert thamy people use/used is rounded by the ocean in santacruz california so use a flat anvil stone and a pestle shaped hammer stone
You explained what is going on here, I'm in the San luiz valley, I find the split pebbles, I have arrowheads, made from split stones, I have stones that blew up while this was done to them. And I have the hammer stone they used, I'm going to dig for the anvil. I have found arrowheads, all over america. But I have never found the archaic artifacts I have found here? Another strange thing, is they used chips, but They struck the chip in such a way, as to make a flake a one sided point, that has three little triangles parts to them. Hard to explain. But I also find Black Jasper, that was the shape they wanted without knapping it. But one edge will be sharpened? They litterly used whatever they picked up out here, And what is here is small stones only. Good material like obsidian, brecceatted jasper, Very pretty stuff mostly, like they knew it was special? The reason I am finding all this stuff, is 2 years ago, The landowners, sold water rights. So wetlands that have beenb estuaries for migratory birds for millenia, are now dry. They sold the water that used to flood this area, for miles. SO What seems a harsh lifestyle, was pretty good.
This technique might work for splitting antique glass telegraph wire insulators. Ishi made at least one example you can view online it is aqua blue. This glass is very brittle and takes great skill to even attempt. Otherwise a diamond tile saw to cut in half and use the insulator sidewalls.
Just ran across this almost 9 year old video & really interested as I've found numerous "suspect" scrapers of similar quartzite river cobble. This really lends some credibility that what I've found is perhaps not natural chips. What I WOULD very MUCH like to see is once this bipolar break is made, where does it go from here, i.e. knapping the other side to make a tool? Can anyone point me to a video?
I’ve watched quite a few videos on bipolar flaking, and I finally realize something fantastic recently. I actually discovered a couple of anvil stones at an archaeological site, and in the spirit of experimental archaeology (and trying to learn about our ancestors), I used one of the stones with another large river cobble as the anvil and hammer to split quartzite pebbles. I was able to make a biface with an even centered edge all the way around, using nothing but bipolar percussion. I was able to control it relatively well, and depending on the angle, when I hit the pebble it would cause the flakes to pop off of the opposite end, or the end that I was striking from both sides. I was delighted when I had finished with it, and it gave me a lot of understanding about some of the artifacts I have recovered from this area.
I have really enjoyed watching and learning from the great teacher and flintknapper Jason Roe.....I hope to see more of his videos.....if you could tell me how to do this, please let me know....thanks.
Interesting to see/hear this demonstration of cobble splitting from an archeologist's point of view. :-)
the anvil stone needs to be flat i do bipolar purcussion all the time because my local chert thamy people use/used is rounded by the ocean in santacruz california so use a flat anvil stone and a pestle shaped hammer stone
and i c the stone is flat the cobnle will not slip as much
You explained what is going on here, I'm in the San luiz valley, I find the split pebbles, I have arrowheads, made from split stones, I have stones that blew up while this was done to them. And I have the hammer stone they used, I'm going to dig for the anvil. I have found arrowheads, all over america. But I have never found the archaic artifacts I have found here? Another strange thing, is they used chips, but They struck the chip in such a way, as to make a flake a one sided point, that has three little triangles parts to them. Hard to explain. But I also find Black Jasper, that was the shape they wanted without knapping it. But one edge will be sharpened? They litterly used whatever they picked up out here, And what is here is small stones only. Good material like obsidian, brecceatted jasper, Very pretty stuff mostly, like they knew it was special?
The reason I am finding all this stuff, is 2 years ago, The landowners, sold water rights. So wetlands that have beenb estuaries for migratory birds for millenia, are now dry. They sold the water that used to flood this area, for miles. SO What seems a harsh lifestyle, was pretty good.
Sorry have to roll my post up, won't read more.
Thank you, RUclips. This recommendation is a fantastic lead-in to the entire ANTH3201 series. 10/10.
This technique might work for splitting antique glass telegraph wire insulators. Ishi made at least one example you can view online it is aqua blue. This glass is very brittle and takes great skill to even attempt. Otherwise a diamond tile saw to cut in half and use the insulator sidewalls.
I will be checking local broken stones for tell tales of having been knapped. Thanks
Just ran across this almost 9 year old video & really interested as I've found numerous "suspect" scrapers of similar quartzite river cobble. This really lends some credibility that what I've found is perhaps not natural chips. What I WOULD very MUCH like to see is once this bipolar break is made, where does it go from here, i.e. knapping the other side to make a tool? Can anyone point me to a video?
I’ve watched quite a few videos on bipolar flaking, and I finally realize something fantastic recently. I actually discovered a couple of anvil stones at an archaeological site, and in the spirit of experimental archaeology (and trying to learn about our ancestors), I used one of the stones with another large river cobble as the anvil and hammer to split quartzite pebbles. I was able to make a biface with an even centered edge all the way around, using nothing but bipolar percussion. I was able to control it relatively well, and depending on the angle, when I hit the pebble it would cause the flakes to pop off of the opposite end, or the end that I was striking from both sides. I was delighted when I had finished with it, and it gave me a lot of understanding about some of the artifacts I have recovered from this area.
Amble stone? I think you mean anvil.
@@bracoop2 yes, indeed. Thanks for noticing. I have corrected the typos. Anvils!
I have really enjoyed watching and learning from the great teacher and flintknapper Jason Roe.....I hope to see more of his videos.....if you could tell me how to do this, please let me know....thanks.
Now we know what happened to his fingertip 😉 Great video
Thanks great information
I was just thinking about what he would say when he smashes his hand.
Make yourself a paire of tweesers to hold the cobble. Wiyjba split branche
How can this be implemented with regular flintnapping? You have given me a few ideas.
The beginning could be an album cover
My man is missing fingers. I'm gonna use a hammer and a vice with a hard backing, lol.
Early man knew this over two million years ago.
I have pounds of these tools from colorado..
Wouldn't a Nutting stone with it's round hole work ??
lol we meet again mr crafty.lol
Aisa pathar mere pass bahut hi Vicky Karega customer ne mil rahe
More demo, less preamble.
Your doing it wrong