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Ingredients

Ingredient Amount
Borax 36.00
Ferro Frit 3195 8.00
Cullet (from clear bottles) 56.00
Add Amount
Copper Carbonate 2.00

Instructions

Published in "Letters" in the Sept 2012 issue of Ceramics Monthly.
The addition of small percentages of iron oxide, rutile, or manganese dioxide will yield a varied palette of greens and browns.