mixed pink and blue from cobalt

firing to cone 6 in oxidation - glaze contains Zinc and Strontium

empirical formula of glaze has .42 molecular equivalents of alumina

slow downfire at 25 deg F an hour in the interval 1750 deg F to 1650 deg F

One hour hold at 1650 deg F

glaze zincSr_177 inside cylinder bowl ~ 3 inch diameter