Craig Martell on thu 8 jan 98
Hi Clayart:
Could one of you guys send me the receipe for wild rose please. I can't
seem to find it on my computer. It can be posted to me off the list or on,
either way is fine with me.
Thanx, Craig Martell-Oregon
Ron Roy on fri 9 jan 98
I'm wondering how many you will get - I'll bet 5 in 3 days and mine counts
Gibby's Wild Rose Tenmoku
LITHIUM CARBONATE 9.50
BONE ASH 9.50
NEPHELINE SYENITE 55.66
EPK KAOLIN 15.84
IRON OXIDE RED 9.50
========
100.00
Expan 8.80
>----------------------------Original message----------------------------
>Hi Clayart:
>
>Could one of you guys send me the receipe for wild rose please. I can't
>seem to find it on my computer. It can be posted to me off the list or on,
>either way is fine with me.
>
>Thanx, Craig Martell-Oregon
Ron Roy
93 Pegasus Trail
Scarborough,Canada
M1G 3N8
Evenings, call 416 439 2621
Fax, 416 438 7849
Studio: 416-752-7862.
Email ronroy@astral.magic.ca
Home page http://digitalfire.com/education/people/ronroy.htm
Don Jung on sat 10 jan 98
Craig,
Here's what I have for the recipe...
Lithium carbonate 10.5
Bone ash 10.5
Nepheline syenite 61.5
EPK 17.5
add:
Red iron oxide 10.5
Very high in Lithium and a bit high in Alumina. My test of it has given
me a very dry matt iron red glaze. The expansion is quite high, mostly
from the bone ash (according to the calculations). Don't know why ...
Hammer's not handy and Calcium and Phosphorus by themselves don't have
that high an expansion. Thought it'd be the Neph Syen (KNa) but the
numbers don't change as much when that's removed.
Interesting... also, didn't get shivering on my tests. I also thought
shivering comes from a 'low' expansion glaze and crazing from a high
expansion glaze. Gotta check that out.
More questions... keeps life interesting:)
Don Jung in mighty chilly Vancouver BC
Craig Martell wrote:
----------------------------Original message----------------------------
Hi
Clayart:
Could one of you guys send me the receipe for wild rose please. I
can't seem to find it on my computer. It can be posted to me off
the list or on, either way is fine with me.
Thanx, Craig Martell-Oregon
shelford on mon 12 jan 98
Don, Craig, and all who had different results from mine in testing -
I seem to have a slightly different recipe - the same as the one Ron Roy
just posted. Someone must have done some alteration somewhere - didn't I
read that it was originally a John Chalke recipe, and had been altered a
bit? Anyway, this is the recipe I used, to get a buttery surfaced very deep
tenmoku-like brown, with heavily massed coppery crystals where thick:
Gibby's Wild Rose Tenmoku
LITHIUM CARBONATE 9.50
BONE ASH 9.50
NEPHELINE SYENITE 55.66
EPK KAOLIN 15.84
IRON OXIDE RED 9.50
========
100.00
Expan 8.80
>----------------------------Original message----------------------------
>Craig,
>Here's what I have for the recipe...
>
>Lithium carbonate 10.5
>Bone ash 10.5
>Nepheline syenite 61.5
>EPK 17.5
>add:
>Red iron oxide 10.5
>
>Very high in Lithium and a bit high in Alumina. My test of it has given
>me a very dry matt iron red glaze. The expansion is quite high, mostly
>from the bone ash (according to the calculations). Don't know why ...
>Hammer's not handy and Calcium and Phosphorus by themselves don't have
>that high an expansion. Thought it'd be the Neph Syen (KNa) but the
>numbers don't change as much when that's removed.
>
>Interesting... also, didn't get shivering on my tests. I also thought
>shivering comes from a 'low' expansion glaze and crazing from a high
>expansion glaze. Gotta check that out.
>
>More questions... keeps life interesting:)
>Don Jung in mighty chilly Vancouver BC
>
>Craig Martell wrote:
>----------------------------Original message----------------------------
>Hi
>Clayart:
>
>Could one of you guys send me the receipe for wild rose please. I
>can't seem to find it on my computer. It can be posted to me off
>the list or on, either way is fine with me.
>
>Thanx, Craig Martell-Oregon
>
>
___________________________________________
Veronica Shelford
e-mail: shelford@island.net
s-mail: P.O. Box 6-15
Thetis Island, BC V0R 2Y0
Tel: (250) 246-1509
Leslie McPherson on tue 13 jan 98
What cone is the Wild Rose?
John Post on thu 15 jan 98
I just unloaded an electric kiln that had a sample of the Gibby's Wild Rose
and a version of it that I modified. I fired until cone 6 was at 6 o'clock
and cone 7 was at 2 o'clock. I soaked the firing near the end for an hour.
I got the Wild Rose recipe from Veronica. My goal was to lower the
expansion and increase the silica a bit, without changing too many of the
other oxides in the glaze. I substituted spodumene for some of the
lithium. I used Frit 3110 instead of the Neph Sy. While the fluxes
changed a bit, the rest of the unity formula is the same.
The Gibby's Wild Rose fired to a matt brown with metallic lustres where
thick. The new variation is a gloss iron red. It has a much more
pronounced metallic lustre where it is thicker. Both glazes seem to fit my
stoneware body without any problems. The new variation is quite a handsome
glaze. I'll probably play with developing a satin wild rose. Something
between the Gibby's matt and my new gloss.
I wanted to try a Ron Roy type of reformulation and see what would happen.
It was worth it, the new glaze is much better (but not simpler ) than the
original.
Gibby's Wild Rose Tenmoku ^6
Lithium carbonate 9.5%
Bone ash 9.5%
Nepheline syenite 55.7%
EPK 15.8%
Red iron oxide 9.5%
100 %
Na2O 0.27 Al2O3 0.54 SiO2 1.96
K2O 0.08 P2O5 0.08
MgO 0.00 Fe2O3 0.17
CaO 0.28
Li2O 0.37
Alumina:Silica ratio is 1.00 : 3.63
Neutral:Acid ratio is 1.00 : 4.10
Alkali:Neutral:Acid ratio is 1.00 : 0.54 : 2.22
Expansion coefficient: 91.3 x 10e-7 per degree C
Oxides causing abnormal expansion effects: Li2O
Post's Variation on Gibby's Wild Rose Tenmoku ^6
Spodumene 27 %
Frit 3110 27.2%
EPK 18.3%
Bone ash 7.9%
Lithium carbonate 3.4%
Red iron oxide 7.9%
Flint 8.3%
100 %
Na2O 0.23 Al2O3 0.54 SiO2 3.02
K2O 0.02 B2O3 0.03 P2O5 0.08
CaO 0.37 Fe2O3 0.17
Li2O 0.38
Alumina:Silica ratio is 1.00 : 5.63
Neutral:Acid ratio is 1.00 : 5.72
Alkali:Neutral:Acid ratio is 1.00 : 0.57 : 3.27
Expansion coefficient: 74.7 x 10e-7 per degree C
Oxides causing abnormal expansion effects: Li2O B2O3
John Post
jp6mchp@moa.net
M.Claire Stil on thu 15 jan 98
------------------
On Mon, 12 Jan 1998 13:51:40 EST, you wrote:
=3E----------------------------Original message----------------------------
=3EDon, Craig, and all who had different results from mine in testing -
=3EI seem to have a slightly different recipe - the same as the one Ron Roy
=3Ejust posted. Someone must have done some alteration somewhere - didn't I
=3Eread that it was originally a John Chalke recipe, and had been altered a
=3Ebit? Anyway, this is the recipe I used, to get a buttery surfaced very =
deep
=3Etenmoku-like brown, with heavily massed coppery crystals where thick:
=3EGibby's Wild Rose Tenmoku
=3E LITHIUM CARBONATE 9.50
=3E BONE ASH 9.50
=3E NEPHELINE SYENITE 55.66
=3E EPK KAOLIN 15.84
=3E IRON OXIDE RED 9.50
=3E =3D=3D=3D=3D=3D=3D=3D=3D
=3E 100.00
=3EExpan 8.80
Hi all
Veronica,I seem to have gotten the same result than you with the other
recipe: buttery golden coppery crystaline surface on a French pyritic
stoneware. I fired 2 thickly glazed pots up to 1265C (minicone 8) in
an electric kiln.
One pot was glazed with a brush, pot on banding wheel=3B the other was
first covered with a net (used for packing oranges and other fruits
from the supermarkets in the Netherlands) and sprayed on.
The first pot has interesting black stripes due to the brushing, the
second has a beautiful pattern from the net.
Marie Claire
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