Main Discussion Area > Flintknapping
Knappability Scale?
JackCrafty:
Chip, the flakability and workability are hard to define, I agree. There is wisdom in your post. The method I'm using is based largely on "frustration level". I know that's almost impossible to define as well but, basically, if the flake run long AND with good predictability, it's high on the scale. So, in the case with high quality quartz, I agree that it can be a pleasure to knap, but the flakes do not run "long".
That said, I going to adjust the scale. I'm downgrading glass and obsidian and upgrading quartzite and high-grade rhyolite.
Caveman, I need to study Callahan's scale tonight. I'm a little short on time right now.
Zuma, I need to find that "butter tile". If it's true, someone is going to make some serious $$ selling that stuff to knappers....
JackCrafty:
Updated Scale:
10 High-grade Heat-treated
9 True Flint and Exceptional-grade Cherts
8 Glass/Obsidian
7 High-grade Chert and Medium-grade Heat-treated
6 Medium-grade Chert
5 High-grade Porcelain and Ceramic
4 High-grade Quartzite and Rhyolite
3 Low-grade Heat-treated
2 Low-grade Chert
1 Low-grade Quartzite and Rhyolite
0 Low-grade Ceramics, Natural Cortex
JackCrafty:
Caveman, I took a look at Callahan's scale really quick and I don't agree with it, especially where he places shale and slate. I'll look at it more closely, along with Waldorf's scale, later...
Zuma:
--- Quote from: jackcrafty on June 16, 2015, 01:15:38 pm ---Chip, the flakability and workability are hard to define, I agree. There is wisdom in your post. The method I'm using is based largely on "frustration level". I know that's almost impossible to define as well but, basically, if the flake run long AND with good predictability, it's high on the scale. So, in the case with high quality quartz, I agree that it can be a pleasure to knap, but the flakes do not run "long".
That said, I going to adjust the scale. I'm downgrading glass and obsidian and upgrading quartzite and high-grade rhyolite.
--- End quote ---
Now that's almost (phenomenological) >:D :)
I like your newer chart.
Zuma
PS
I think the thick porcelain tiles must have been installed like cheap marble.
Perhaps for bathrooms and window sills? Just a guess.
JackCrafty:
Zuma, yes, and quite intersubjectively unstable. ;D
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