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Hunt For Perfect Turquoise Glaze


Val

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I've been hunting for a cone 5/6 or even a cone 06 turquoise that is fairly opaque, satin or shiny ,and food safe. Everything I have found is either transparent, or too green, or not food safe etc. Recipe or ready made is fine :)

The photo shown is PERFECT, but a secret.

Thanks !

Val

post-17681-0-68368600-1462643128_thumb.jpg

post-17681-0-68368600-1462643128_thumb.jpg

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Here is one. They can be persnickety. test. Must have the correct thickness.

Turquoise  cone: 6 : reduction  satin matt.

Nepheline Syenite 61.54 

Strontium Carbonate 20.88 

Silica                 7.69 

Ball Clay    6.59 

Lithium Carbonate   3.30 

100

ADD  Copper Carbonate   3.50 

           Bentonite   4.00 

           Epsom Salts   1.00 

color: this is usually bright, very turquoise 

surface: matt 

comments: As far as I know, these work fine in oxidation as well  submitted by: John Anthony 

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Hi Marcia and " Old Lady",

 

First, Old lady ( that seems a little disrespectful but could not find your name ) do you have a recipe for the glaze in your photo?

 

and Marcia, is the glaze on your vase photo the glaze in the recipe you posted ? 

 

Thank you so much for all the help !

Val

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MC 532A from CARLTON BALL ^4-6 Oxidation

600 Barium Carbonate **************for safety sake use the Strontium rather than the Barium

OR 450 grams of Strontium Carb (SrCO3)

1350 Nepheline syenite

140 Ball clay

160 Flint

70 Copper carbonate

70 Lithium carbonate

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the recipe is from Bill vanGilder's book, "Wheel thrown pottery".  it is called Rutile Green.  i use the base recipe and add 5% cerulean blue, a color from Mason stains which is no longer made by them but they can tell you how to combine two of their colors to get it.  or use turquoise stain and get a different color.  i have tested this base glaze with many different color stains and most of them come out great.

 

original recipe calls for copper carb, obviously you will not add that if you want a different color, just the base plus bentonite and rutile.  here it is straight out of the book.

 

rutile green glaze, cone 6 oxidation

 

talc..........................................5

custer feldspar........................22

whiting.....................................4

silica........................................26

tile #6 or EPK..........................17........i use EPK

ferro frit #3134........................26

                                             100

 

add 

bentonite.................................2

powdered rutile.......................6

copper carb............................4

 

have fun with it, the glaze as written is a yellowish green that i do not like.  it was used to go over other colors and modify them.  used alone with other colorants you have a nice, easy glaze.

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