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glaze test for raspberry base cone 6 oxidation.

updated sat 23 sep 00


Alisa and Claus Clausen on fri 22 sep 00

Receipe source is Clayart Archives, Paul Lewing.
Tested on light grey mid range stoneware fired to 1220c oxidation.
27 Custer spar
21 Whiting
18 Silica
9 Frit 3134
8 Talc
8 Gertely Borate
Subs. were local frit and spar.
Clear, stable, shiny gloss. No noticeable differences where double =
dipped. Some crystals where especially thick under rim.

Same receipe tested with 8 colemanite for Gerstley Borate.
No discernable difference, expect colemantite version had a very small =
bluish pool in test bowl center.
I think this sub. works.

Best regards,
Alisa in Denmark