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glaze test for marcia selsor's sexy black, cone 6 reduction

updated mon 7 aug 00


Alisa and Claus Clausen on sun 6 aug 00

Tested on a light grey mid range stoneware, fired to cone 6, oxidation.
11.75 whiting
54.5 Kona F4 feldpar
6.5 EPK
25 Silica
10 R.I.O
2.5 Manganese Dioxide
I substituted Kona F4 spar with my local Forshammer spar. I rounded the =
amounts up to the nearest whole decimal.
Results were a deep iron brown glossy glaze with some speckling. This =
glaze in oxidation resembles Chris Wolff's Plum. It could be a good =
substitute for that glaze when the G.B. runs out. It has a nice surface =
with some play in the color, due to the lighter spots. Where it was =
thickest over the rim of the test cup, it had a rougher surface with =
very slight craters.
No dripping or running.
Best regards,
Alisa in Denmark