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Ingredients

Ingredient Amount
Nepheline Syenite 31.25
Alberta Slip Clay 68.75
Add Amount
Cobalt Oxide 3.54

Instructions

I layer this black underglaze under Seafoam Green glaze, but it is a great black all by itself. Fire to cone 10 in reduction in a gas kiln. 

This recipe was shared by Mark Cortright in the October 2021 issue of Ceramics Monthly.


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