Test Glazes

I have selected fourteen cone 6 glazes that I want to test. That's a lot you ask? Yes it is! I have made a ton of test tiles and I will be mixing up 100 gram batches of each glaze over the next week or so. I should get a lot done this weekend since the Gators don't play. Here are the glazes along with their formulas:

Floating Blue

Nephaline Syenite 47.30

Gerstely Borate 27.00

Kaolin/EPK 5.40

Silica 20.30

add:

Cobalt Oxide 1.00

Red Iron Oxide 2.00

Bentonite 1.00

Rutile 4.00

Randy's Red

Silica 30.00

EPK 5.00

Soda Feldspar (Kona F-4) 20.00

Talc 14.00

Gerstley Borate 31.00

add:

Red Iron Oxide 15.00

Nutmeg

Dolomite 23.30

Spodumene 23.30

Ferro Frit 3134 6.80

Kentucky Ball Clay (OM4) 23.30

Silica (Flint) 23.30

add:

Red Iron Oxide 1.07

Yellow Ochre 3.24

Tin Oxide 4.85

Bentonite 1.94

Cream Rust

Custer Feldspar 26.60

Strontium Carbonate 3.30

Ferro Frit 3134 30.60

Wollastonite 10.60

Talc 2.30

EPK 8.40

Silica 18.20

add:

Red Iron Oxide 6.00

Tin Oxide 13.00

Grey

Tennessee Ball Clay #5 20.00

F-4 Feldspar 50.00

Gerstley Borate 5.00

Whiting 15.00

Zinc Oxide 5.00

Flint (325 Mesh) 5.00

add:

Black Nickel Oxide 2.00

Cobalt Carbonate 1.00

Eggshell

Whiting 9.50

Zinc Oxide 5.50

Ferro Frit 3124 44.50

Custer Feldspar 20.00

Bentonite 7.50

EPK/Kaolin 5.00

Silica 8.00

add:

Tin Oxide 9.00

Red Iron Oxide 3.00

Speckled Glaze

Gerstley Borate 59.00

Talc 41.00

add:

Rutile 18.00

White Glaze

Dolomite 23.00

Nephaline Syenite 72.00

Ball Clay 5.00

add:

Tin Oxide 8.00

Red Iron Oxide 1.00

Bentonite 2.00

Brown Slip

Ferro Frit 3124 10.00

Nephline Syenite 10.00

EPK/Koalin 40.00

Kentucky Ball Clay (OM4) 30.00

Silica 10.00

add:

Red Iron Oxide 8.00

Ron Roy Black

Talc 3.00

Whiting 6.00

Kona F-4 Feldspar 21.00

Ferro Frit 3134 26.00

EPK/Kaolin 17.00

Silica 27.00

add:

Cobalt Carbonate 1.00

Red Iron Oxide 9.00

Waterfall Brown

Formula not printed - see book Mastering Cone 6 Glazes

Caribbean Sea Green

Formula not printed - see book Mastering Cone 6 Glazes

Variegated Blue

Formula not printed - see book Mastering Cone 6 Glazes

Raw Sienna

Formula not printed - see book Mastering Cone 6 Glazes

Am I crazy for testing so many glazes?  The answer is most certainly 'yes'.  More to come...