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glaze test for revised peacock blue, cone 6, ox.

updated thu 11 oct 01


Alisa og Claus Clausen on wed 10 oct 01

Glaze test for:   Revised Peacock Blue, cone 6, ox.

Source:  Clayart

All tests fired on white, mid-range stoneware.

Fired in to cone 6 (1220c) in oxidation.

Firing ramp:

100c (212f) per hour to 600c (1112f)

150c (302f) per hour to 1100c (2012f)

100c per hour to 1220c (2228f)

15 - 30 minute soak depending on matts and glosses used.

Revised Recipe:

40 Feldshammer Feldspar

15 Ball Clay

12 Silica

18 Wollastonite

15 Zinc ox.


10 Titanium co.

1 Cobalt ox.

1 Copper ox.

Original recipe

40 Potash

15 Ball Clay

20 Flint

15 Whiting

15 Zinc ox.

10 Titanium ox.

0.75 Cobalt ox.

1.0 Copper ox.


All raw materials measured up or down to nearest whole decimal.

Oxides used on percent basis to a 100 gram batch of glaze.


Resulted in:

Same greenish brown background as original.  However, this
version produced pools of light blue instead of the originals deeper
blues. Much more contrast in the greens, blues and browns.  On a
slightly textured surface looks very much like it's name. Glaze stayed
where dipped.   Glossier surface than original semi matt. 
Think this looks good.

Although I like the original glaze recipe for some pots, with it's more
matt surface, I think this glaze will compliment throwing rings and
such.  Very lively, colorful, smooth surface.

Best regards, Alisa

in Denmark

Ababi on wed 10 oct 01

Now Alisa try it without the titanium!

Ababi Sharon
Kibbutz Shoval- Israel
officially Glaze addict