Edouard Bastarache on thu 22 jul 10
Eric,
thanks for your kind words;
Thanks also for your kind words for what you call :
" [image: \alpha =3D3D
\frac{1}{V} \biggl(\frac{\delta V}{\delta T} \biggr)
_{P}\] " people.
I use some very old stuff sold to me 2th hand
20 years ago by a friend.
The colour is purple
According to GlazeChem :
Purple Cornwall Stone supplies SiO2, Al2O3,
K2O, Na2O, CaO, MgO, P2O5, TiO2, and Fe2O3.
% 3.60 Na2O 3.70 K2O 0.12 MgO 1.90 CaO
15.80 Al2O3 72.80 SiO2 0.38 P2O5 0.07 TiO2
0.18 Fe2O3 0.90 F 1.25 LOI
Na2O 0.43 Al2O3 1.15 SiO2 9.03
K2O 0.29 P2O5 0.02
MgO 0.02 TiO2 0.01
CaO 0.25 Fe2O3 0.01
Alumina:Silica ratio is 1.00:7.82
Neutral:Acid ratio is 1.00:7.85
Alk:Neut:Acid ratio is 1.00:1.15:9.06
Expansion: 66.1 x 10e-7 per degree C
Gis,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://blogsalbertbastarache.blogspot.com/
http://cerampeintures.blogspot.com/
http://perso.wanadoo.fr/smart2000/index.htm
----- Original Message -----=3D20
From: "Eric Hansen"
To:
Sent: Thursday, July 22, 2010 6:20 AM
Subject: Re: Envoi d'un message : C-9? R. Dolomitic Glazes
Edouard, thanks for posting recipes & images. i always like recipes, they
are friendly to other potters no matter what the " [image: \alpha =3D3D
\frac{1}{V} \biggl(\frac{\delta V}{\delta T} \biggr)_{P}\] " people say.
What Cornwall stone do you use the new white stuff or the old blue colore=
=3D
d
stone?
h a n s e n
On Wed, Jul 21, 2010 at 10:03 PM, Eva Gallagher wrote:
> Hi Edouard,
> Great looking glazes - will have to try some of them. What clay body ar=
=3D
e
> you
> using? I have been trying to get nice warm orange brown body for our g=
=3D
as
> reduction kiln - like in the 60's and 70's. However evidently Newman Re=
=3D
d=3D20
> is
> what was used for many of those and it is no longer available. Tuckers =
=3D
has
> a
> new dark stone - just did a little sample and got just a more chocolat=
=3D
e
> brown rather than orange tones. I have been reoxidizing at the end to s=
=3D
ee
> if
> that would help but do not see a difference - maybe need to experiment=
=3D
a
> bit more.
>
> Eva Gallagher
> http://newfoundoutpotter.blogspot.com/
> http://www.valleyartisans.com/gallagher/Gallagher.htm
>
>
>
> ----- Original Message -----
> From: "Edouard Bastarache"
> To:
> Sent: Wednesday, July 21, 2010 1:12 PM
> Subject: Envoi d'un message : C-9=3DBD R. Dolomitic Glazes
>
>
> http://dolomitic.blogspot.com/
>
>
> Some of my dolomitic glazes,
>
> Gis,
>
> Edouard Bastarache
> Spertesperantisto
>
> Sorel-Tracy
> Quebec
>
> http://www.flickr.com/photos/30058682@N00/
> http://edouardbastarache.blogspot.com/
> http://blogsalbertbastarache.blogspot.com/
> http://cerampeintures.blogspot.com/
> http://perso.wanadoo.fr/smart2000/index.htm
>
--=3D20
Eric Alan Hansen
Stonehouse Studio Pottery
Alexandria, Virginia
americanpotter.blogspot.com
thesuddenschool.blogspot.com
hansencookbook.blogspot.com
"To me, human life in all its forms, individual and aggregate, is a
perpetual wonder: the flora of the earth and sea is full of beauty and of
mystery which seeks science to understand; the fauna of land and ocean is
not less wonderful; the world which holds them both, and the great univer=
=3D
se
that folds it in on everyside, are still more wonderful, complex, and
attractive to the contemplating mind." - Theodore Parker, minister,
transcendentalist, abolitionist (1810-1860)
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