•The secret to cool bodies and glazes is a lot of testing.
•The secret to know what to test is material and chemistry knowledge.
•The secret to learning from testing is documentation.
•The place to test, do the chemistry and document is an account at https://insight-live.com
•The place to get the knowledge is https://digitalfire.com
A hard weather resistant rock quarries from use as roofing and exterior wall tile. It has a complex chemical and mineral composition.
Out Bound Links
By Tony Hansen