Ivor and Olive Lewis on tue 2 mar 04
Dear Friends,
Reading about the problems with Copper coloured Raku Glazes leads me
to think that they are very unstable concoctions.
Given that John and Ron used copper as a leaching indicator in their
work on Cone 6 glazes I suspect that there is something inimical about
this element which makes it difficult to get it to react with
aluminosilicate glasses and also remain inert.
Any thought on why?
Best regards,
Ivor Lewis. Redhill, South Australia
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