Monday, January 2, 2012

Cone 6 soda Turquoise



This tile is also from June Perry :


#1079 Juicy Turquoise A- cone 6

41.0 Cornwall Stone
12.5 Strontium Carb.
10.0 Whiting
 5.0 Lithium Carb
 5.0 EPK
16.5 Silica

A: add 2.5% copper oxide, 2.5 Tin oxide, 2 bentonite

6 comments:

Oy Clay !!! Pottery said...

So John, when are you adding a cone 6 (Reduction, Oxidation & salt fire) to your class schedule???? June could be a guest speaker. Oh,Happy Gregorian New Year.

John Britt said...

Working on it!

Oy Clay !!! Pottery said...

Sign me up!!!

Eleanore said...

And a book, as well!!!

Anonymous said...

Is there something missing or should the formula add to 90?

John Britt said...

June tells me that someone may have left out the ball clay to make it less refractory. She thinks she got it from the cone 6 google group :

Glaze name: Juicy Turquoise
Cone: 6
Color: turquoise
Surface texture: glossy
Firing: Oxidation
Comments: breaks on texture and sharp edges on my iron clay body.

Cornwall Stone 41.00
Kentucky Ball Clay (OM 4) 10.00
EPK 5.00
Lithium Carbonate 5.00
Strontium Carbonate 12.50
Whiting 10.00
Flint 16.50
Totals: 100.00 %

Also add:
Copper Oxide 2.50
Tin Oxide 4.50
Bentonite 2.00

Unity Formula for Juicy Turquoise:
0.056 K2O 0.354 Al2O3 2.909 SiO2
0.080 Na2O 0.004 Fe2O3 0.007 TiO2
0.366 CaO 0.005 P2O5 8.2:1 Si:Al Ratio
0.006 MgO
0.218 Li2O
0.273 SrO