arlene h. on tue 16 nov 99
our studio has a gallon of this. recently we ran out of rutile so subbed
y/ochre hoping to get a yellow glaze. the result was a beautiful saskatoon
berry colour! to basic white glaze, we added colemanite and y/o.
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Kip Whelan on wed 17 nov 99
OK for those of us who don't live anywhere near you and have never heard of
a saskatoon berry...what is a saskatoon berry and what color is it in color
terms, yellow, tan, etc.? Where do you find these berries? What do they
taste like? Now you have got me really curious not only about your glaze
but also about those berries. See what happens when you put something on
the net we don't all know about. Inquiring minds want to know.
> ----------
> From: arlene h.[SMTP:chinacat54@hotmail.com]
> Reply To: Ceramic Arts Discussion List
> Sent: Tuesday, November 16, 1999 9:13 AM
> To: CLAYART@LSV.UKY.EDU
> Subject: yellow ochre
>
> ----------------------------Original message----------------------------
> our studio has a gallon of this. recently we ran out of rutile so subbed
> y/ochre hoping to get a yellow glaze. the result was a beautiful
> saskatoon
> berry colour! to basic white glaze, we added colemanite and y/o.
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
>
Martin Howard on wed 17 nov 99
For the benefit of us outside the USA, what is Saskatoon Berry colour?
Sounds interesting. I need a yellow/golden/light brown glaze and this might
be right.
Martin Howard
Webbs Cottage Pottery
Woolpits Road
Great Saling
BRAINTREE
Essex CM7 5DZ
martin@webbscottage.co.uk
Joanne L. Van Bezooyen on sun 3 sep 00
I've never heard anyone on clayart mention yellow ochre as a
stain.....but I bought some. It's on a little test tile now in the
kiln, however, I have no info about using it. Anyone know anything
about it? Will it fire?
Joanne in Tucson
Jeff Brown on mon 4 sep 00
Yellow ochre when fired looks very much the same as it does in the raw
state. The glaze on the following teapot has 7% yellow ochre. Porcelain
teapot ^10 :
http://jeffbrownpottery.com/teapot-amb.jpg
I also use 1% yellow ochre to mute a bright cobalt glaze a little.
Jeff Brown
http://www.jeffbrownpottery.com
Wade Blocker on mon 4 sep 00
Joanne, Add a small percentage of ochre to your glaze. Ochre is in the iron
family, the results will be much the same. Mia in ABQ
laura on mon 4 sep 00
> I've never heard anyone on clayart mention yellow ochre as a
> stain.....but I bought some. It's on a little test tile now in the
> kiln, however, I have no info about using it. Anyone know anything
> about it? Will it fire?
> Joanne in Tucson
>
>
Yes, yellow ochre will fire. One of my favorite glazes at school used yellow
ochre as the main colorant (might have had some iron oxide too). The glaze
was glossy and runny, and fired a really rich amber color, dark brown where
it pooled, with gold flecks. It was a c10 reduction glaze called Amber
Celadon, and had to reach teperature and reduce or it was flat and greenish
yellow. I caught flack from some of the other students for using "that funky
70's glaze."
I have moved back to the family ranch, and am in the process of building
a wood kiln. I am testing yellow ochre in slips, and can let you know how it
turns out. I love the stuff, but I love shades of browns and golds. I'm
hoping I can find an audience, thinking my convictions will carry me on this
venture.
Speaking of -- any South Dakota potters who want to get together and
stoke? Not every time of course, but it would be great to get together with
a few people and share a kilnload.
lo
whetstone pottery
ljmalm@gwtc.net
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BonitaCohn@AOL.COM on mon 4 sep 00
Hi--I use yellow ochre as one would use iron oxide--to "flavor" ash glazes
(yellow) and for a celadon.
Bonita
(in San Francisco, after Saturday's whole lotta shakin' goin' on. The anagama
kiln in Napa still stands!)
http://www.cpmg.com/anagama
http://www.silverhawk.com/ex99/cohn
anagama_mama@yahoo.com
Earl Brunner on tue 5 sep 00
On the other hand, what we are calling yellow ochre is
probably pretty much what Tom Coleman calls Yellow Iron
oxide, He uses it in many of his celadon recipes. Sometimes
it might as you say look pretty much as it does in the raw
state. I would not presume to say that all of the time it
does, under all conditions.
Jeff Brown wrote:
>
> Yellow ochre when fired looks very much the same as it does in the raw
> state. The glaze on the following teapot has 7% yellow ochre. Porcelain
> teapot ^10 :
> http://jeffbrownpottery.com/teapot-amb.jpg
> I also use 1% yellow ochre to mute a bright cobalt glaze a little.
>
> Jeff Brown
> http://www.jeffbrownpottery.com
--
Earl Brunner
http://coyote.accessnv.com/bruec
mailto:bruec@anv.net
Alisa and Claus Clausen on tue 5 sep 00
I add yellow ochre to a cone 6 base white glaze and the results is a =
psuedo "shino." I use 10%. The=20
glaze has many difference nuances from white to a nut brown, lots of =
stripes and play in the glaze.
It is also good for coloring white bodies, between 10-15%. This is one =
of my favorite "stains" because
it is found locally and produces good color. =20
Best regards,
Alisa in Denmark
Susan Kosko on tue 5 sep 00
i have used a yellow ochre/red iron oxide slip in ^10 reduction firings. unfortunately, the recipe belongs
to my former teacher so i don't have it! but i brushed it over a glossy clear glaze and got some nice
brownish-silvery brushstrokes. it's very stable the way i've used it, but i'm far from an expert on its
use. hope this helps a little.
susan kosko
new durham, nh, usa
Tom Buck on wed 6 sep 00
Earl:
There is a difference between natural ochres and synthetic ones.
The ochre family, including yellow ochre, covers "any of the various
coloured earthy powders consisting essentially of hydrated iron (III)
oxides (aka ferric oxides) mixed with clay, sand, etc. Some ochres are
calcined (eg, burnt ochre). The colours are yellow, brown, or red.
Non-combustible, non-toxic (as such)."
I've quoted from a chemical dictionary.
And:
"Iron oxide yellow. Hydrated iron (III) oxide (aka ferric),
Fe2O3.H2O. A precipitated pigment of finer particle size and greater
tinctorial strength that the naturally occurring oxides such as ochre.
This pigment has excellent lightfastness and resistance to alkali."
This pigment is made primarily for three industries, paint,
rubber, plastics.
Hence, it would seem that the synthetic form is to be preferred to
the natural form. Perhaps costs may have a bearing on which one goes into
a glaze mix.
good pots. bfn. peace. tom b.
Tom Buck )
tel: 905-389-2339 (westend Lake Ontario, province of Ontario, Canada).
mailing address: 373 East 43rd Street,
Hamilton ON L8T 3E1 Canada
On Tue, 5 Sep 2000, Earl Brunner wrote:
> On the other hand, what we are calling yellow ochre is
> probably pretty much what Tom Coleman calls Yellow Iron
> oxide, He uses it in many of his celadon recipes. Sometimes
> it might as you say look pretty much as it does in the raw
> state. I would not presume to say that all of the time it
> does, under all conditions.
>
> Jeff Brown wrote:
> >
> > Yellow ochre when fired looks very much the same as it does in the raw
> > state. The glaze on the following teapot has 7% yellow ochre. Porcelain
> > teapot ^10 :
> > http://jeffbrownpottery.com/teapot-amb.jpg
> > I also use 1% yellow ochre to mute a bright cobalt glaze a little.
> >
> > Jeff Brown
> > http://www.jeffbrownpottery.com
>
> --
> Earl Brunner
> http://coyote.accessnv.com/bruec
> mailto:bruec@anv.net
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
>
iandol on thu 7 sep 00
Ochre is Hydrated Iron Oxide. I understand it is formed from the =
weathering of iron rich rocks. As a pigment, its composition and colour =
will be determined by its origins. It can vary in colour and may be =
contaminated with clay or lime, or both. It can also be contaminated =
with manganese. The degree and type of contamination will have an =
influence on the way it behaves in any particular glaze recipe. So if =
you only purchase small amounts, do not expect to get consistent results =
from batch to batch.
Ivor Lewis.
David Hewitt on sat 9 sep 00
I agree entirely with these comments. From my experience it is a very
variable material.
David
In message , iandol writes
>Ochre is Hydrated Iron Oxide. I understand it is formed from the =
>weathering of iron rich rocks. As a pigment, its composition and colour =
>will be determined by its origins. It can vary in colour and may be =
>contaminated with clay or lime, or both. It can also be contaminated =
>with manganese. The degree and type of contamination will have an =
>influence on the way it behaves in any particular glaze recipe. So if =
>you only purchase small amounts, do not expect to get consistent results =
>from batch to batch.
>
>Ivor Lewis.
>
--
David Hewitt
David Hewitt Pottery ,
7 Fairfield Road, Caerleon, Newport,
South Wales, NP18 3DQ, UK. Tel:- +44 (0) 1633 420647
FAX:- +44 (0) 870 1617274
Web site http://www.dhpot.demon.co.uk
E.G. Yarnetsky on thu 20 nov 03
My guess is that you will have a slightly purple tinted or muddy brown,
probably pretty dark. It is my understanding that yellow ochre has a
bit of maganese in it, hence the unusual brown tint occasionally. Also,
yellow ochre can dry out a glaze a bit, so expect it to be a drier
surface that the original base glaze.
Happy testing!
Darlene Yarnetsky, Mudcat Pottery in Madison Indiana where we are
expecting 4 whole days of sun and 60 degree weather! Won't do much for
the Christmas sales, but excellent hiking weather! Get to save some
money on the gas bill too.
Veena Raghavan on mon 5 dec 11
Hi Bill,
Very, very nice. Love the glaze and the jar.
Veena
In a message dated 12/5/2011 11:11:38 PM Eastern Standard Time,
BMerrill@PENCOL.EDU writes:
>
>
> Yellow ochre is a pigment I have used from Hall Chemical Company. It
> was used for paint manufacturing. The pigment was extremely smooth and
> quite an earthy yellow. It is a little less saturating than iron. I
> used it in an iron saturate glaze. A picture of the glaze is on my
> Flickr page if anyone is interested in seeing it. Let me tell you the
> yellow ochre that is sold in ceramic shops are not of the quality this
> ochre is. I purchased a 100 pounds of it years ago and still have some
> left. I'll try to find a source for a quality ochre and let everyone
> know when I locate some.
>
> Regards,
>
> Bill
>
> http://www.flickr.com/photos/25594880@N04/
VeenaRaghavan@cs.com
Bill Merrill on mon 5 dec 11
Yellow ochre is a pigment I have used from Hall Chemical Company. It
was used for paint manufacturing. The pigment was extremely smooth and
quite an earthy yellow. It is a little less saturating than iron. I
used it in an iron saturate glaze. A picture of the glaze is on my
Flickr page if anyone is interested in seeing it. Let me tell you the
yellow ochre that is sold in ceramic shops are not of the quality this
ochre is. I purchased a 100 pounds of it years ago and still have some
left. I'll try to find a source for a quality ochre and let everyone
know when I locate some.
Regards,
Bill
http://www.flickr.com/photos/25594880@N04/=3D20
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