Cindy Bracker on tue 11 jul 06
I just got a call from a customer of mine asking if we had Green Iron
Oxide. It's not too often I'm completely stumped on a chemical.
Usually I've at least heard of the "strange" chems, even if we don't
carry them. I really thought she meant Green Nickel, or Chrome, but
she cited the reference to me:
The ACerS book "Exploring Electric Kiln Techniques", page 129,
Crystalline Glaze Base Recipe variation V says "add 2.62% green iron
oxide and 2.62% red iron oxide to produce royal blue crystals on a
gray background". This was from the original article, Crystalline
Glazes: A Precise Method by Bevan Norkin. I'm just really thinking
it's a misprint. Anyone out there know for sure?
Cindy
Cindy Bracker Sturm
Bracker's Good Earth Clays, Inc.
888-822-1982
http://www.brackers.com
Dan Dermer on tue 11 jul 06
Funny... I too have wondered what exactly is green iron oxide...
I was testing some crystalline glazes earlier this year, and found an
article in Ceramics Monthly (Mar 1992) by Bevan Norkin. In the article, one
of the colorant variations on a crystalline base is described as, "Variation
V: add 2.62% GREEN IRON OXIDE and 2.62% red iron oxide to produce royal
blue crystals on an orange to red/brown background".
sounded interesting -- wanted to test it -- couldn't find reference to Green
Iron Oxide anywhere. I tried Iron Chromate, figuring it was a "green" iron
ore due to the chrome.
I got muddy/icky brown with no crystals with those colorants. Luckily,
other tests were more interesting!
Still curious about whether Green Iron Oxide is iron chromate, or maybe
something else?
-Dan
http://www.higherfirestudios.com
claybair on tue 11 jul 06
Cindy...
Did a quick Google search for GIO and got
http://www.google.com/search?hl=en&q=Green+iron+oxide
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
http://claybair.com
-----Original Message-----
From:Cindy Bracker
I just got a call from a customer of mine asking if we had Green Iron
Oxide. It's not too often I'm completely stumped on a chemical.
Usually I've at least heard of the "strange" chems, even if we don't
carry them. I really thought she meant Green Nickel, or Chrome, but
she cited the reference to me:
The ACerS book "Exploring Electric Kiln Techniques", page 129,
Crystalline Glaze Base Recipe variation V says "add 2.62% green iron
oxide and 2.62% red iron oxide to produce royal blue crystals on a
gray background". This was from the original article, Crystalline
Glazes: A Precise Method by Bevan Norkin. I'm just really thinking
it's a misprint. Anyone out there know for sure?
Cindy
Cindy Bracker Sturm
Bracker's Good Earth Clays, Inc.
888-822-1982
http://www.brackers.com
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Steve Slatin on tue 11 jul 06
Cindy --
Fe(OH)2 is green. Fe(OH)3 is brown. FeO(OH) (goethite, limonite) is red-brown. FeO is black. Fe2O3 is yellow, or red if heated, or can be purple if the grain size is just right. From a chemical standpoint, iron is fascinating. OTOH, from a nuclear standpoint, it's just useless.
Steve Slatin
Cindy Bracker wrote:
I just got a call from a customer of mine asking if we had Green Iron
Oxide. It's not too often I'm completely stumped on a chemical.
Usually I've at least heard of the "strange" chems, even if we don't
carry them. I really thought she meant Green Nickel, or Chrome, but
she cited the reference to me:
The ACerS book "Exploring Electric Kiln Techniques", page 129,
Crystalline Glaze Base Recipe variation V says "add 2.62% green iron
oxide and 2.62% red iron oxide to produce royal blue crystals on a
gray background". This was from the original article, Crystalline
Glazes: A Precise Method by Bevan Norkin. I'm just really thinking
it's a misprint. Anyone out there know for sure?
Cindy
Cindy Bracker Sturm
---------------------------------
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William & Susan Schran User on wed 12 jul 06
On 7/11/06 3:35 PM, "Cindy Bracker" wrote:
> I just got a call from a customer of mine asking if we had Green Iron
> Oxide.
Cindy,
A quick Google search provided multiple Chinese companies dealing in green
iron oxide. Looks like it's primary use is the coloring of concrete/cement.
Here's a link to a detailed description of iron:
http://www.du.edu/~jcalvert/phys/iron.htm
-- William "Bill" Schran
Fredericksburg, Virginia
wschran@cox.net
wschran@nvcc.edu
Brant Palley NMCLAY.com on wed 12 jul 06
Nickel will give the color you indicated an unusual blue, irons make brown.
See this article
http://www.nmclay.com/Customer_service/crystals.htm
Brant Palley
www.nmclay.com
Maurice Weitman on fri 6 oct 06
At 11:03 -0500 on 10/6/06, Cindy Bracker wrote:
>[...] I recently received a response directly from
>Bevan Norkin and I wanted to share it with you:
>>your post asking me, bevan norkin, what is green iron oxide, is
>>rather malicious if you had checked with me first you would have
>>found out that that was a missprint.
>>malign someones knowledge in the form of asking a passive
>>aggressive question and not bothering to check with me first how
>>dare you
Hello, Cindy,
Surely the message you received, claiming to be from Bevan Norkin,
must have been sent by someone else, or meant to be a joke by him.
A potter of Norkin's stature and demonstrated generosity would never
make such a claim, unless it was a prank. Or a missprint (sic).
You clearly have nothing to be concerned about... you acted perfectly
responsibly, going the extra mile for your customer.
Regards,
Maurice
Earl Brunner on fri 6 oct 06
Know it is a misprint is no help if we don't know the correction..............
Cindy Bracker wrote: A while back I posted a question to Clayart about Green Iron Oxide.
Many of you wonderful people responded with suggestions, and I thank
you sincerely. (For your reference, my original post appears below
the forwarded message) I recently received a response directly from
Bevan Norkin and I wanted to share it with you:
Begin forwarded message:
> From: Crystallineglaze@aol.com
> Date: October 6, 2006 10:29:52 AM CDT
> Subject: your clay art posting
>
> your post asking me, bevan norkin, what is green iron oxide, is
> rather malicious if you had checked with me first you would have
> found out that that was a missprint.
> malign someones knowledge in the form of asking a passive
> aggressive question and not bothering to check with me first how
> dare you
>
>
> bevan
>
Cindy Bracker Sturm
Bracker's Good Earth Clays, Inc.
888-822-1982
http://www.brackers.com
Nancy Braches on fri 6 oct 06
Hi Cindy
I didn't respond to your original post since I know nothing about a green iron oxide and I don't care for crystalline glazes.
I don't think you were malicious in any way...was just asking a great group of people if they knew what that chemical was. I think you were trying to get some kind of confirmation for one of your customers. Good vendors work hand in hand with their customers...almost like that partner who knows those things you don't know.
Nancy
Cindy Bracker wrote: A while back I posted a question to Clayart about Green Iron Oxide.
Many of you wonderful people responded with suggestions, and I thank
you sincerely. (For your reference, my original post appears below
the forwarded message) I recently received a response directly from
Bevan Norkin and I wanted to share it with you:
Begin forwarded message:
> From: Crystallineglaze@aol.com
> Date: October 6, 2006 10:29:52 AM CDT
> Subject: your clay art posting
>
> your post asking me, bevan norkin, what is green iron oxide, is
> rather malicious if you had checked with me first you would have
> found out that that was a missprint.
> malign someones knowledge in the form of asking a passive
> aggressive question and not bothering to check with me first how
> dare you
>
>
> bevan
>
Cindy Bracker Sturm
Bracker's Good Earth Clays, Inc.
888-822-1982
http://www.brackers.com
On Jul 11, 2006, at 2:35 PM, Cindy Bracker wrote:
> I just got a call from a customer of mine asking if we had Green Iron
> Oxide. It's not too often I'm completely stumped on a chemical.
> Usually I've at least heard of the "strange" chems, even if we don't
> carry them. I really thought she meant Green Nickel, or Chrome, but
> she cited the reference to me:
> The ACerS book "Exploring Electric Kiln Techniques", page 129,
> Crystalline Glaze Base Recipe variation V says "add 2.62% green iron
> oxide and 2.62% red iron oxide to produce royal blue crystals on a
> gray background". This was from the original article, Crystalline
> Glazes: A Precise Method by Bevan Norkin. I'm just really thinking
> it's a misprint. Anyone out there know for sure?
> Cindy
>
> Cindy Bracker Sturm
> Bracker's Good Earth Clays, Inc.
> 888-822-1982
> http://www.brackers.com
>
> ______________________________________________________________________
> ________
> 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.
______________________________________________________________________________
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.
Nancy
Hilltop Pottery
http://pg.photos.yahoo.com/ph/hilltoppottery/album?.dir=/e4e8re2&.src=ph
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Cindy Bracker on fri 6 oct 06
A while back I posted a question to Clayart about Green Iron Oxide.
Many of you wonderful people responded with suggestions, and I thank
you sincerely. (For your reference, my original post appears below
the forwarded message) I recently received a response directly from
Bevan Norkin and I wanted to share it with you:
Begin forwarded message:
> From: Crystallineglaze@aol.com
> Date: October 6, 2006 10:29:52 AM CDT
> Subject: your clay art posting
>
> your post asking me, bevan norkin, what is green iron oxide, is
> rather malicious if you had checked with me first you would have
> found out that that was a missprint.
> malign someones knowledge in the form of asking a passive
> aggressive question and not bothering to check with me first how
> dare you
>
>
> bevan
>
Cindy Bracker Sturm
Bracker's Good Earth Clays, Inc.
888-822-1982
http://www.brackers.com
On Jul 11, 2006, at 2:35 PM, Cindy Bracker wrote:
> I just got a call from a customer of mine asking if we had Green Iron
> Oxide. It's not too often I'm completely stumped on a chemical.
> Usually I've at least heard of the "strange" chems, even if we don't
> carry them. I really thought she meant Green Nickel, or Chrome, but
> she cited the reference to me:
> The ACerS book "Exploring Electric Kiln Techniques", page 129,
> Crystalline Glaze Base Recipe variation V says "add 2.62% green iron
> oxide and 2.62% red iron oxide to produce royal blue crystals on a
> gray background". This was from the original article, Crystalline
> Glazes: A Precise Method by Bevan Norkin. I'm just really thinking
> it's a misprint. Anyone out there know for sure?
> Cindy
>
> Cindy Bracker Sturm
> Bracker's Good Earth Clays, Inc.
> 888-822-1982
> http://www.brackers.com
>
> ______________________________________________________________________
> ________
> 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.
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