Ingredients

Ingredient Amount
Gerstley Borate 12.50
Whiting 10.41
Nepheline Syenite 56.26
Silica 20.83
Add Amount
Copper Carbonate 0.80
Tin Oxide 1.50
Rutile 4.00

Instructions

Published in "Opaque Glazes" by John Britt, in the Oct 2014 issue of Ceramics Monthly.
Shown on Frost porcelain.