Butter Dish
cone 10 oxidation
Firing profile
A half hour hold at 1750 deg F
A three hour hold at 1700 deg F
slow downfire at 25 deg F an hour in the interval 1700 deg F to 1650 deg F
A one hour hold at 1650 deg F
Clay body is a grolleg porcelain from Tacoma Clay Art Center.
glaze composition
Alkali metal .78
Li2O .18
Alumina .56
molecular percent silica 66%
Butter Dish