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. re: gerstley borate

updated mon 2 may 11

 

David Woof on sun 1 may 11


Hi Alice=3D2C =3D20
Whoa there! keep reading the posts and the archives! You most likely ma=
=3D
y/will not get the same results with a substitute even if you used Jame's r=
=3D
ecipes. Just the nature of the beast!!!
=3D20
And James sez:< By making such a switch=3D2C one avoids both the potential=
a=3D
vailability problem and the
variability problem inherent in a mined product such as Gerstley borate or
colemanite.>
=3D20
James=3D2C some folks seek uniformity and consistant conformity=3D3B and ye=
s we=3D
can get conditioned to something we like and resist or mourn change=3D3B b=
ut=3D
I chose change as the spice of a life lived fully and long. No? What lif=
=3D
e is there to come home 24/7 to the same companion=3D2C wearing the same ou=
tf=3D
it=3D2C (no matter how charming) eating the same dinner dish=3D2C drinking =
the =3D
same wine...dancing the same after dinner dance...???? A certain series of=
=3D
repetative motions habitually engaged in to bring about a predictable resu=
=3D
lt. ya-hoo cowboy! we ride-in high now!!!=3D20
=3D20
If you are interested=3D2C I have a token 50#s of authentic old Albany slip=
g=3D
athering cob webs to remind me that moving on is OK and many times great. =
=3D
I experimented with "albany substututes" that matched its anaylisis=3D3B b=
ou=3D
ght 72 acres of slip clay country property that fired more beautifully than=
=3D
albany ever did about the time Alberta slip came on the market and I moved=
=3D
on to other exciting things. If a recipe calls for albany or alberta my m=
=3D
ind translates to "local slip" and I wait with baited breath for the "new" =
=3D
results or effect on an old stand-by glaze.
=3D20
Sometimes something wonderful happens. Sometimes I just get the satisfacti=
=3D
on of doing something new and the thrill of expectation whether to fruition=
=3D
or not. Can I afford to? Or is it=3D3B can I afford not to?! =3D20
=3D20
David Woof=3D20
_______________________________________________________________________
1c. Re: Gerstley Borate
Posted by: "Alice DeLisle" wanderland@ATT.NET=3D20
Date: Fri Apr 29=3D2C 2011 4:33 am ((PDT))

Thanks James. I have quite a bit of Gerstley and it is good to know that
Gillespie will substitute in the future.

Alice=3D20
________________________________
From: James Freeman
To: Alice DeLisle
Cc: Clayart@lsv.ceramics.org
Sent: Thu=3D2C April 28=3D2C 2011 10:02:02 PM
Subject: Re: Gerstley Borate

On Thu=3D2C Apr 28=3D2C 2011 at 6:05 PM=3D2C Alice DeLisle net> w=3D
rote:
For a number of years the talk has been that Gerstley Borate (GB) is being =
=3D
mined
out and will not be available soon. Yet glaze recipes containing GB continu=
=3D
e to
circulate and=3D2C more importantly=3D2C appear in publications. This is pa=
rtic=3D
ularly
true of raku glazes and mid-fire glazes. If you look at the clay supply
catalogs=3D2C GB is still listed for sale. Were new sources for GB found th=
at
remove the concerns about availability?
_________________________________________________
Alice...

I can't speak to the mining issue=3D2C but about five years ago I switched =
to
Gillespie borate as a straight one-to-one substitute=3D2C and have noticed =
no
difference at all in my glazes=3D2C including in very high GB recipes. By m=
ak=3D
ing
such a switch=3D2C one avoids both the potential availability problem and t=
he
variability problem inherent in a mined product such as Gerstley borate or
colemanite.

All the best.

...James

=3D20



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