Ingredient Amount
Barium Carbonate 4.03
Dolomite 8.06
Gerstley Borate 8.06
Whiting 2.42
ZInc Oxide 12.89
Potash Feldspar 38.68
EPK Kaolin 1.69
silica-(325-mesh) 24.17
Add Amount
Copper Carbonate 1.77
tin-oxide 2.42


This glaze is fired to cone 10 in reduction in a gas kiln. Apply glaze just a bit thicker than usual glazing. Start reduction at 1750°F (954°C). 


 This recipe was shared by Mark Cortright in the October 2021 issue of Ceramics Monthly.