Glaze Tests

caAlSi_0 is an approximation to the CaO-Alumina-Silica eutectic.

Firing is to cone 4 in oxidation.

glaze soda_H1_1

Tile 2

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Tile 4

Tile 5

glaze caAlSi

Empirical Formula soda_H1_1

K2O        0.07
Na2O       0.89
CaO        0.02
MgO        0.02

Al2O3      0.41

SiO2       3.5

molecular percent Silica 71.3%

Empirical Formula caAlSi_0

K2O        0.003
Na2O       0.001
CaO        0.993
MgO        0.002

Al2O3      0.35

SiO2       2.48

molecular percent Silica %

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