Ingredient Amount
Lithium Carbonate 5.26
Zinc Oxide 26.32
Ferro Frit 3110 48.42
silica 20.00
Add Amount
Titanium Dioxide 4.21
CMC Gum 1.05
Cobalt oxide 2.11


Cobalt oxide version shown on bottom left mug.

It’s best to mix all the ingredients together dry, then add water; otherwise, all the CMC gum will clump together. Note: If adding rutile for gold crystals, drop the titanium dioxide content to 2%. Add 1% lithium carbonate increments if it over-crystallizes. 

This recipe was shared by Ryan Coppage in the June/July/August 2022 issue of Ceramics Monthly.