Katheleen Nez on tue 1 jan 02
Dear John: I usually email you offline about whether a
glaze is COOL or not - and know you've been pretty
responsive in the past but also know you've been
pretty busy with the book and all...I use this white
Shino (cone 10 redux) I found with spodumene. Probably
leaches like a sieve (bad functional potter!). My
question is, I've been firing a celadon next to it,
and now the celadon that used to fire to olive green
breaking to khaki brown is the Color of Money with big
black iron spots (when I fire with shino in same
load(?)) Any ideas out there?
WHITE SHINO
Soda Ash 3
Kona F-4 15
Neph Syen 50
Spodumene 13
Kaolin 3
OM-4 Ball Clay 16
JEAN'S CELADON
Silica 32.4
Whiting 19.3
Potash Spar 26.8
Kaolin 19.5
Blk Iron Ox 2
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John Hesselberth on wed 2 jan 02
Hi Katheleen,
I know you addressed this primarily to me, but I don't have a clue on this
one. Hopefully someone who has worked more with shinos and celadons will
chime in.
John
on 1/1/02 6:58 PM, Katheleen Nez at potternez@YAHOO.COM wrote:
> .I use this white
> Shino (cone 10 redux) I found with spodumene. Probably
> leaches like a sieve (bad functional potter!). My
> question is, I've been firing a celadon next to it,
> and now the celadon that used to fire to olive green
> breaking to khaki brown is the Color of Money with big
> black iron spots (when I fire with shino in same
> load(?)) Any ideas out there?
> WHITE SHINO
> Soda Ash 3
> Kona F-4 15
> Neph Syen 50
> Spodumene 13
> Kaolin 3
> OM-4 Ball Clay 16
> JEAN'S CELADON
> Silica 32.4
> Whiting 19.3
> Potash Spar 26.8
> Kaolin 19.5
Web sites: http://www.masteringglazes.com and http://www.frogpondpottery.com
Email: john@frogpondpottery.com
"The life so short, the craft so long to learn." Chaucer's translation of
Hippocrates, 5th cent. B.C.
Ron Roy on fri 4 jan 02
Hi Katheleen.
It may be the influence of the sodium - it becomes volitile above cone 6
and you have a lot of Neph Sy and some soda spar plus some soda ash - that
is a pile of sodium - as shino's should have.
Just as a mater of curiosity - the celadon does not craze - right? and the
shino does?
>I use this white
>Shino (cone 10 redux) I found with spodumene. Probably
>leaches like a sieve (bad functional potter!). My
>question is, I've been firing a celadon next to it,
>and now the celadon that used to fire to olive green
>breaking to khaki brown is the Color of Money with big
>black iron spots (when I fire with shino in same
>load(?)) Any ideas out there?
>WHITE SHINO
>Soda Ash 3
>Kona F-4 15
>Neph Syen 50
>Spodumene 13
>Kaolin 3
>OM-4 Ball Clay 16
>JEAN'S CELADON
>Silica 32.4
>Whiting 19.3
>Potash Spar 26.8
>Kaolin 19.5
>Blk Iron Ox 2
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
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