Ingredients

Ingredient Amount
Whiting 24.47
Custer Feldspar 34.33
EPK Kaolin 22.44
Silica 18.76
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Titanium Dioxide 7.50
Neodymium Oxide 5.00
Erbium Oxide 8.00

Instructions


When working with rare-earth colorants, use titanium dioxide. Using rutile will cause the glaze to over-crystallize. Mix to a specific gravity of 1.45 and apply by dipping a piece into the glaze for 3 seconds. This glaze crazes on some porcelain bodies, and goes matte on some stoneware bodies. I use Coleman Porcelain from Aardvark. If applied too thickly on Coleman Porcelain, the glaze can craze slightly. Fires to a glossy surface at the right peak temperature, but a slightly lower peak temperature and lead to more matte surface.

This recipe was shared by Brenna Dee McBroom in the September/October 2021 issue of Pottery Making Illustrated.