Lisa Goldberg on wed 9 jun 99
Does anyone have a good recipe for a blue turquoise glaze?
Lisa in Yellow Springs, OH
Pat Colyar on thu 10 jun 99
OK, let's all yell at Lisa together:
Mary Ernst on sat 12 jun 99
Don't know what temperature you are firing nor if it is a reduction
or oxidation environment, but here is a recipe that covers a very wide
range 5-9 in both ox and reduction. It is a reliable glaze that I got a
while back from a post on ClayArt.
Custer Feldspar 27.6
Gerstley borate 16.87
Copper carbonate 2.34
Mary in Charleston... who, thanks to the fellow ClayArtists, has
restored most of her clay links and bookmarks (and has acquired a whole
lot more). I also broke down and bought a tape backup system for this
ababy sharon on sat 12 jun 99
I made allot of testing out a base I had and was hard to use.This one I
send here is the best so far works from1100C(maybe even lower) up to
1240C-Oxidation.As it contains ALLOT of sodium, it`s a crackle glaze.
Soda Ash 26
Soda Feldspar 5
For more Blue Copper Ox. Instead of the carb.
Can add About 0.1%of cobalt Ox.
Can add 1 % Granular Ilimenite.
And can Join me On my searching of the most beautiful Turquoise, and good
----- Original Message -----
From: Lisa Goldberg
Sent: Wednesday, June 09, 1999 10:50
Subject: looking for a blue/turquoise glaze
> ----------------------------Original message----------------------------
> Does anyone have a good recipe for a blue turquoise glaze?
> Lisa in Yellow Springs, OH
Mike Bailey on wed 16 jun 99
In message , Zoeytana@aol.com writes
>I know I forgot to say I'm looking for a cone 10 glaze and barium carbonate
>is OK I guess.
>The following glaze is a Barium type turquoise with a wide firing
Potash Feldspar 49.0
Hyplas 71 9.0 (or any high silica ball clay)
Barium Carbonate 27.0
Copper carbonate 2.5
the colour response is quite sensitive and dependent on the clay body.
It also seems to go bluer when fired as fast as possible.
Hope this is of interest