Lili Krakowski on thu 27 dec 07
A few weeks ago, a propos of something, I mentioned that Monona Rossol had
published a list of safer glaze ingredients.
These appeared in a ClayTimes piece of hers, and please not the title was
SAFER Glaze Ingredients. There is a note I quote: "Substances mined from
the earth often are contaminated with other materials., Be sure to get a
material safety data sheet to verify composition."
The List:
Bone Ash
Dolomite
Kaolin and other clays
Magnesium Carbonate
Nepheline syenite
Potassium and Sodium feldspars
Whiting
Wollastonite
Examples of Safer Colorants and Opacifiers
(An asterisk directs one to the same note)
Copper Oxides
Iron Oxides and ilmenite
Tin Oxide
Titanium Oxide and rutile
Zinc Oxide
Zirconium silicate
If memory serves (!) the list was compiled by a potter, or a student of
Monona's. Sorry I can't give credit.
Lili Krakowski
Be of good courage
Lee Love on fri 28 dec 07
Most traditional feldspars and clays could go in the upper list as
well as your ash from the proper sources. If you look at the lists,
you see the mainstays of highfired ware: rocks, ash and clay.
On 12/28/07, Lili Krakowski wrote:
> The List:
>
> Bone Ash
> Dolomite
> Kaolin and other clays
> Magnesium Carbonate
> Nepheline syenite
> Potassium and Sodium feldspars
> Whiting
> Wollastonite
>
>
> Examples of Safer Colorants and Opacifiers
> (An asterisk directs one to the same note)
>
> Copper Oxides
> Iron Oxides and ilmenite
> Tin Oxide
> Titanium Oxide and rutile
> Zinc Oxide
> Zirconium silicate
>
> If memory serves (!) the list was compiled by a potter, or a student of
> Monona's. Sorry I can't give credit.
>
>
>
>
>
>
>
>
>
>
> Lili Krakowski
> Be of good courage
>
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--
--
Lee in Mashiko, Tochigi Japan
http://mashikopots.blogspot.com/
"Tea is nought but this: first you heat the water, then you make the
tea. Then you drink it properly. That is all you need to know."
--Sen No Rikyu
"Let the beauty we love be what we do." - Rumi
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