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glaze test for crystalline aqua icing, cone 6, oxidation.

updated sat 29 may 04


Alisa Clausen on fri 28 may 04

Glaze test for Crystalline Aqua Icing, cone 6, oxidation.

Source: Clay Times, Sep/Oct. 2003
Credited to:

Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down max. to 800c
Hold 1 hour
Shut off kiln

41.48 Silica
23.61 Neph. Syenite
12.39 Whiting
11.26 Lithium Carb.
6.46 Gerstely Borate
2.82 Magnesium Carb.
1.98 Barium Carb.

3.05 Tin Oxide
3.55 Rutile
2.50 Copper Carb.

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.

A semi mat glaze that is has a smooth surface. Where thickest, it is =
slightly streaky and aqua, where thinnest, it is an olive green.

Green Version
3.8 Copper Carb.
0.25 Cobalt Carb.
A glossier glaze than above. Overall an olive green color with some =
lighter areas where thickest.

Regards from Alisa in Denmark