The material is irrelevant.
To prove your point. Replicate the stone vessel exactly by carving it in cheese.
Any flavor you like. Document your progress and publish on Youtube.
No need to even consider "Meta-Andesite, feldspar phenocrysts", (even if it does sound impressive)
If you are demonstrably successful, we can then apply your technique to harder materials.
No I do not have a photo of the consistent wall thickness, possibly due to the fact that the Meta-andesite, feldspar phenocrysts are composed of chemical elements who's atomic lattice structure is such that a very high level of attenuation occurs when subjected to radiation with wavelengths at, or close to those of visible light.
In a nutshell, I (and you) cannot see through rock.
However if you take a look at the drawing of the "duck jar" on page 150 of the Stocks book...
You can clearly observe the measured wall thickness.
Stocks in his book claims that this demonstrates the stick and stone method.
I find it difficult to see how one can possibly determine the exact nature of the tooling without physically replicating and demonstrating the procedure, a leap of faith, uncorroborated conjecture at its best, combined with his very brief description of his hypothesized technique, which can be proven to be totally impractical and unworkable.
Do you know of any such demonstration?
Edited 4 time(s). Last edit at 07-May-16 00:24 by Jon Ellison.