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glaze test for cone 6 pikes oatmeal (purple oatmeal)

updated sat 23 sep 00


Alisa and Claus Clausen on fri 22 sep 00

Tested on mid range light grey stoneware, fired to 1220c oxidation,=20
37,3 Custer
12,7 Gerstely Boarte
6,4 Dolomite
13,6 Talc
4,5 Kaolin
22,7 flint
2,7 Zinc Ox.
Add 3.3 colbat. oxide.
Tested withOUT cobalt to see color for a neutral hopeful.
All amounts were measured up to the next whole decimal.
Subs. were local spar.
Stable, smooth, semi matt glaze. Color is yellowish on the clay body =
and some whitish pooling in the middle of test bowl.

Same receipe with 3% cobalt oxide.
Heather purple satin mat with some glossy patches.

Best regards,
Alisa in Denmark=20