Ingredient Amount
Calcium Borate 10.00
Calcium Carbonate 9.00
Dolomite 3.00
Zinc 1.00
Barium Carbonate 2.00
Feldspar 65.00
Silica 10.00
Add Amount
Copper Carbonate 0.31
Tin 5.00


Excerpted from The Ceramic Spectrum by Robin Hopper. Published by The American Ceramic Society and available for purchase in the Ceramic Arts Network Shop,


This recipe was shared by Robin Hopper in the January 2024 issue of Ceramics Monthly.