•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
Lustres are very thin coatings of metallic substances fired at comparatively low temperatures onto an already fired glaze surface. They produce iridescent effects.
By Tony Hansen