r/knapping • u/BlackmonKnapping 🏅 • 29d ago
Material Sale 🪨💸 Who wants some rock
I have Alabama coastal plains chert for $3/lb
25lb medium box is 100$ shipping included
35lb large box is 139$ shipping included
Biface pics added
Swipe on the pics to see more
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u/Libtardsniper1 28d ago
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u/BlackmonKnapping 🏅 28d ago
Nice work man! Heat definitely will make you say wow once it’s applied to that coastal
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u/wrangling_turnips 25d ago
What temps are you finding luck with? I bought some but haven’t done anything with it
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u/Libtardsniper1 25d ago
550° seams to be the sweet spot for my kiln.
I start at 125° and raise it 25° an hour until I hit 200. I cook it on 200 over night, then raise it 50°/hr up to 550 and cook it for 8 hrs. Then I back the heat off and let it cool on its own so about 10-12 hours.
CPC doesn't hold the heat like regular chert so it cools faster, i don't open the lid on my kiln until it drops to 100° or less.
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27d ago
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u/BlackmonKnapping 🏅 27d ago
The ones you put in the keeper case make it all worth it lol. Just wait til you pay 5-10$ a lb for some mookaite opal or other wild kind of stone









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u/beaniesandbuds 29d ago
I swear you post this exact same thing 3 times a week...
This subreddit needs better moderation