test 15

Speckled Beige
Cone 6 Oxidation

Recipe:
Gerstley Bor. 14
Spodumene 30
Kaolin 3
Dolomite 7
Talc 13
Flint 28
Rutile 5
Mag Dioxide 3

Evaluation:
This is a high gloss and translucent glaze. Has the traditional rutile streaking, but is unstable.

This glaze is one of 18 tests. Students of the fall 2009 semester tested in 100 g. batches, recalculated to assure glaze stability, then further tested 500 g. batches, and finally compiled a list of 18 glazes to go through a uniformed batch test. All batches of this 18 recipe set were mixed through a process of precise measurements, 60 and 80 mesh screening, were dipped on cone 04 bisque for 3 seconds, and were finally fired to a witnessed cone 6 oxidation in an electric kiln. (Firing schedules are to follow shortly).