Ingredients

Ingredient Amount
Barium Carbonate 50.00
Zinc 10.00
Nepheline Syenite 20.00
C&C Ball Clay 15.00
EPK Kaolin 5.00
Add Amount
Copper Carbonate 2.50

Instructions

Published in "Strong, Pure and Matt" by Pat Horsley, in the Jan/Feb 2006 issue of Pottery Making Illustrated.