Alisa Liskin Clausen on sun 8 sep 02
ox.
Glaze test for Crystal Glaze, Light Green/Blue, Orange/Blue, cone 6, ox.
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c.
Source:
Credited to:
Firing ramp:
100c up/he to 600c (212f - 1112f)
150c up/he to 1100c (330f - 2012f)=20
100c up/he to 1220c (212f - 2228f)
cool down max. per hour to 1100c=20
cool 80c per hour to 800c
shut off kiln
Recipe:
5 Kaolin
15 Flint
24 Zinc Oxide
13 Whiting
7 Lithium Carb.
36 Feldspar
For light green with blue crystals
ADD
5 Rutile
1 Copper Carb.
For Orange with blue crystals
1 Nickel
Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Substitutions: None
Results:
Lt. Green with blue crystals
Fluid gloss glaze with turquoise ground and large green crystals. Where =
glaze pooled, looks like an aerial view of the Caribbean islands. =20
Results:
Orange with blue crystals
Orange to rust transparent ground with large light blue crystals with =
dark blue crystals inside. =20
Personal: This is the first time I tried crystal glazes, and these two =
variations are amazing. The test tiles are like precious gems. =20
The crystals have such clear structures and the =
formations are look geographical.
Regards from Alisa in Denmark
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