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Ingredients

Ingredient Amount
Custer Feldspar 49.80
Whiting 8.40
OM 4 Ball Clay 9.50
Barium Carbonate 19.90
Bone Ash 5.10
Zinc Oxide 7.30
Add Amount
Titanium Dioxide 1.10
Rutile 8.20

Instructions

This glaze is from John Britt's book,"High Fire Glazes".

The test tile is Coleman Porcelain fired in oxidation.
Can be runny if applied thickly.