Hey my brother I just recently found you I hope you are doing well me and my family are praying for you. I am a cancer survivor I was one of the first bone marrow transplants back in the 50s hang in there. I will continue to pray for you and your family. If don't here from you I will meet you in heaven. God bless you and yours my brother
working with kaowool like that and picking it up and roughing it up... not a good idea. those things release a lot of tiny glass fibers that will wreck your lungs permanently over time, leaving scar tissue in your lungs. i used to have that stuff in my forge and the satanite layering came off at some point due to the flux i was using, and I kept using it, only for those fibers to start making my throat itch like crazy after a while. I only found out about its dangers after that, but yeah... not a good idea working on it without a mask of some sort.
called silicosis we had alot of that here in Pa. from the coal mines before they did strip mining drilling holes for blasting our rocks are mostly granite and full of silicon. Killed alot of young guys! My Grandfather included
I despise cancer! It always takes the good ones! Prayers for your family. I just saw this video today and searched for you on FB since you had a FB page also.
I hope your health is doing better. I always enjoy your videos. Could I suggest that perhaps when you spall if you stabilize your large core or mother stone you could have more controll on gaining better, larger spalls. This can be done on the lap or by digging a depression in the earth to cradle the stone and prevent movement of your core as you remove spalls. I keep you in my prayers for a complete recovery & healing. You are a good guy. God bless you.
I suppose that cotton was called kao wool. All I know it was usually used by knifemakers to line their kilns. The high temp resistance of the fibres keeps them from burning and the small cavities in between the fibres keeps the heat from convecting away. Anyway, thank you for sharing this. I hope for the best for you Justin. Stay strong and God bless you sir!
Started my first batch the other day and today was cool down day. Turned it off last night and today when I got home from work I had some nice kappable spalls, TX chert. All of it had color change and I made three preforms that knapped like a dream Compared to before the heat treatment. Nice and glossy now. Before it was very grainy. I am wondering though , are the roasters being phased out? I went to two thrift stores , two walmarts ,best buy,target lowes ,no one had a turkey/ oven roaster . I finally found one at a Walmart in the next town over. It wasn't even on display they had two on the top shelf so I grabbed one. Maybe I'll get another online or go back to that walmart if they are being phased out and get it if it's still there cause if so I would want at least one or two backups . Every store had plenty of air fryers pressure cookers and crock pots though and new fancy digital crap that I didn't even know existed. Lol
I think you meant to write do you heat treat the rock before spalling it or do you heat treat the spalls. I can answer your question. You can heat treat spalls or you can heat treat the larger core stone. Being careful is very important because the outer perimeter of the large core will always become more heat treated than the center. If heat treating the entire large core outer spalls can then be removed but you will most likely have to re-heat the remainder of the core to get spalls that are more fully transformed thru heat treating. It is probably better to spall first and then heat treat. However, sometimes a large core can actually be heat treated to make the controlled removal of spalls for additional heat treatment of those spalls possible.
@Scentaur Fragrance Thats what I’m wondering too. I have a whole bunch of pedernales that I would like to ‘sand down’ to shape. I work with crystals; it’s my first time working with this flint type stone. I’ve heard that they may become more brittle after heat-treating? I’m just not sure. I’ve had some difficulties finding info on this. I’m gonna try the semi primitive method.
Heat treatment will cause some of the different varieties of stone to change color. Like with Burlington chert it will often go from white to pink. What the heat treatment does is it basically melts the silica , which is what glass is made of, and it makes the chert or flint easier to control the fracture by increasing the likelihood of a conchoidal fracture. It makes it harder and therefore, much like a piece of glass that is also hard and will shatter easily, it will knapp easier. I know that you were on here trying to find answers a year or more ago but I figured that whoever sees this and is trying to find the answer can find it here now. Sorry to hear that the guy that made this video has passed away. I believe it was from cancer and I hope his family are doing as well as is possible and are remembering the time they got to spend together with happy hearts. Not what anyone wants to be remembered for the end and not for the life and love shared. May you find peace and cherish your memory.
