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Ingredients

Ingredient Amount
Whiting (Kulu) 25.00
Potash Feldspar 25.00
Kaolin (G1) 25.00
Silica 25.00
Add Amount
Copper Carbonate 0.50
Tin Oxide or Zirconium 5.00

Instructions

Published in "Working Potter Glazes" in the June 2016 issue of Ceramics Monthly, page 68.
Add 8–10% zirconium for a very opaque green. I prefer zirconium because it's much cheaper than tin oxide in South Africa.