Iron Yellow glaze
A micro-crystalline pale yellow glaze with dark iron speckles centered in
orangey-yellow ovals where thick.
bowl is ~ 4 inches in diameter.
150 deg F an hour to 250 deg F
400 deg F an hour to 1800 deg F
300 deg F an hour to 2050 deg F
120 deg F an hour to 2310 deg F with a hold of 20 minutes at 2310 deg F
300 deg F an hour to 1800 deg F then a 2 hr hold at 1800 deg F
300 deg F an hour to 1750 deg F then a 1 hr hold at 1750 deg F
50 deg F an hour to 1700 deg F then a three hour hold at 1700 deg F
25 deg F an hour to 1650 deg F then a one hour hold at 1650 deg F
K2O 0.19
Al2O3 0.60
SiO2 3.03
molecular percent Silica 64.3%
Where thin, the iron speckles broaden,
and the yellow fades into a translucent ivory.
Image of the glaze alex-longquan-iron-shino-MLi
inside
outside
oxidation firing to cone 10 in an electric kiln
Firing profiles
Up Fire profile
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Clay body is a grolleg porcelain from Tacoma Clay Art Center.
glaze compositions
Empirical Formula alex-longquan-iron-shino-MLi :
Na2O 0.24
CaO 0.46
MgO 0.11
Fe2O3 0.08