Ingredients

Ingredient Amount
Lithium Carbonate 6.00
Whiting 24.00
Calcium Borate Frit 6.00
Potash Feldspar 46.00
China Clay 6.00
Silica 12.00
Add Amount
Chromium Oxide 0.10
Tin Oxide 6.00

Instructions

Published in "Red and Orange Glazes" by Linda Bloomfield, in the Sep/Oct 2012 issue of Pottery Making Illustrated.
Calcium borate frit is an English frit similar in composition to colemanite with some added silica. American frits such as Ferro 3124, 3134, or 3195 can be substituted but they contain less boron and more silica. 'Borax frit' contains sodium, calcium, and boron similar to Gerstley borate and can be substituted with Ferro 3124 or 3134.