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: copper carbonate

updated thu 26 jan 12


ivor and olive lewis on wed 25 jan 12

Beside inducing the colour green Copper compounds have qualities common to
Chromium compounds. As far as I can ascertain oxides of both are insoluble
in Silicate melts and none of their oxides combine chemically with Silicon
It has been written that Copper atoms can exist within a silicate melt as
Cupric ions, Cuprous ions, Atomic Copper (single neutral atoms) and
crystalline Copper. The latter is responsible for red aventurine effects. I=
is also recorded that molten Copper oxide and Silicon dioxide are


Ivor Lewis,
South Australia