Eric Hansen on mon 26 mar 07
Well here is what I found in that old "chit-chat"
archive. I hope this is what you need. A lot of tests
were done on these glazes but the discussion was
largely off line & it's all on a 3.5" PC floppy and
I'm using a MAC now. Again! This is just a recipe
copied and pasted. Results may vary. Was it the #7 you
wanted? I can't remember here is the #1-#20 series.
H A M B O N E
>#1. Cone 6 7 0xidation
>Potash Feldspar 45
>Whiting 10
>Zinc 10
>Kaolin 10
>Silica 25
>A nice cream. No crazing. Very nice
>
#2. Cone 6 7 0xidation
Nepheline Syenite 28
Magnesium Carbonate 10
Zinc 15
Gerstley >>Borate 13
Kaolin 8
Silica 36
Semi matt white. No craze. Excellent.
#3. Cone 6 7 0xidation
Nepheline Syenite 50
Whiting 50
Ball clay 50
Matt. Stony white with yellow patches. Orange flashing
on the edges.
#4. Cone 6 7 0xidation
Nepheline Syenite 40
Dolomite 18
Kaolin 12
Bone Ash 6
Lithium Carbonate 2
Zinc Oxide 2
Iron Oxide 2
Chromium Oxide 1
Semi mat orange/tan
#5. Cone 6 7 0xidation
Nepheline Syenite 67
Dolomite 10
Kaolin 8
Silica 9
Zinc 6
Copper Carbonate 3
Shiny. Soft green with pink flecks. Very good
#6. Cone 6 7 0xidation
Potash Feldspar 40
Whiting 30
Barium Carbonate 14
Zinc Oxide 0.3
Kaolin 12
Zirconium Silicate 9
Ball clay 5
Lithium Carbonate 2
Copper Carbonate 1.5
Manganese Dioxide 1.5
Cobalt Oxide 0.25
Semi matt. Green/blue breaking to pale blue
#7. Cone 6 7 0xidation
Nepheline Syeniye 20
Wollastonite 20
Gerstley Borate 18
Ball Clay 10
Barium Carbonate 10
Zirconium Silicate 9
Lithium Carbonate 2.5
Cobalt Oxide 1
Semi matt. Pale blue with darker flecks. Darker blue
where pooled or thick.
#8. Cone 6 7 0xidation
Potash Feldspar 40
Zinc 4
Dolomite 3
Whiting 15
Kaolin 5
Silica 33
Chromium Oxide 0.5
Red Iron Oxide 4
Shiny, dark orange/brown
#9. Cone 6 7 0xidation
Nepheline Syenite 34
Silica 41
Whiting 17
Kaolin 8
Tin Oxide 10
Chromium Oxide 0.5
Shiny, strong pink. Very good
#10. Cone 6 7 0xidation
Potash Feldspar 42
Zinc 12
Kaolin 15
Silica 26
Whiting 15
Chromium Oxide 1
Rutile 1
Shiny Tan/orange. Nice
#11. Cone 6 7 0xidation
Barium Carbonate 50
Spodumene 40
Gerstley Borate 10
Bentonite 3
Copper Carbonate
Semi matt. Turquoise green. Paler on edges
#12. Cone 6 7 0xidation
Nepheline Syenite 40
Dolomite 20
Bone Ash 6
Zinc 4
Kaolin 13
Silica 23
Semi matt white. Buttery surface
#13. Cone 6 7 0xidation
Nepheline Syenite 42
Zinc 12
Kaolin 15
Silica 26
Whiting 15
Titanium Dioxide 5
Chromium Oxide 1
Yellow green. Paler on edges.
#14. Cone 6 7 0xidation
Soda Feldspar 39
Silica 29
Zinc 10
Gerstley Borate 10
Dolomite 19
Bone Ash 13
Red Iron Oxide 13
Almost and iron red. Orange where thick.
#15. Cone 6 7 0xidation
Barium Carbonate 36
Nepheline Syenite 58
Ball Clay 4
Cobalt Oxide 0.5
Dry. Adhered well Pale blue with vivid mid blue
speckles. Great for sculpture
#16. Cone 6 7 0xidation
Soda Feldspar 45
Silica 33
Whiting 4
Talc 7
Kaolin 5
Tin Oxide 10
Soda Ash 5
A nice "shino like" white breaking to orange
#17. Cone 6 7 0xidation
Gerstley Borate 21
Nepheline Syenite 16
Kaolin 11
Whiting 20
Silica 32
Tin Oxide 5
Chromium Oxide 0.15
Excellent red/pink, purple/mauve where thick
#18. Cone 6 7 0xidation
Potash Feldspar 55
Barium Carbonate 41
Zinc 3
Copper Carbonate 2
A very nice dry glaze. Great for sculpture. Varying
from a pale blue tint to a turquoise tint.
#19. Cone 6 7 0xidation
Potash Feldspar 55
Barium Carbonate 41
Zinc 3
Copper Carbonate 2
Cobalt Carbonate 1
Rutile 5
Dry. Mid grey/blue with yellow green flecks. Good for
sculpture.
#20. Cone 6 7 0xidation
Barium Carbonate 5
Gerstley Borate 10
Magnesium Carbonate 5
Whiting 11
Potash Feldspar 16
Soda Feldspar 16
Ball Clay 5
Silica 31
Cobalt Carbonate 0.5
Rutile 3
Shiny pale blue where thin. Nice streaky blue where
thicker.
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Donna Kat on tue 27 mar 07
Other than for a pink glaze I have never used Chromium Oxide. I see it
being used here a lot and only in a couple glazes is the color in the pink
range. Could someone please educate me on how it is working in the glazes
that are not pink and why or how does glaze #5 has pink specks in it?
P.S. the yellow green I get - lots of Chrome - I guess from that I can
understand the orange now that I think of it. Given the toxicity of
Chromium though wouldn't Iron with Tin be just as good?
On Mon, 26 Mar 2007 11:43:56 -0700, Eric Hansen
wrote:
>#4. Cone 6 7 0xidation
>Nepheline Syenite 40
>Dolomite 18
>Kaolin 12
>Bone Ash 6
>Lithium Carbonate 2
>Zinc Oxide 2
>Iron Oxide 2
>Chromium Oxide 1
>Semi mat orange/tan
>
>#5. Cone 6 7 0xidation
>Nepheline Syenite 67
>Dolomite 10
>Kaolin 8
>Silica 9
>Zinc 6
>Copper Carbonate 3
>Shiny. Soft green with pink flecks. Very good
>
>
>#8. Cone 6 7 0xidation
>Potash Feldspar 40
>Zinc 4
>Dolomite 3
>Whiting 15
>Kaolin 5
>Silica 33
>Chromium Oxide 0.5
>Red Iron Oxide 4
>Shiny, dark orange/brown
>
>#9. Cone 6 7 0xidation
>Nepheline Syenite 34
>Silica 41
>Whiting 17
>Kaolin 8
>Tin Oxide 10
>Chromium Oxide 0.5
>Shiny, strong pink. Very good
>
>#10. Cone 6 7 0xidation
>Potash Feldspar 42
>Zinc 12
>Kaolin 15
>Silica 26
>Whiting 15
>Chromium Oxide 1
>Rutile 1
>Shiny Tan/orange. Nice
>
>#13. Cone 6 7 0xidation
>Nepheline Syenite 42
>Zinc 12
>Kaolin 15
>Silica 26
>Whiting 15
>Titanium Dioxide 5
>Chromium Oxide 1
>Yellow green. Paler on edges.
>
>#17. Cone 6 7 0xidation
>Gerstley Borate 21
>Nepheline Syenite 16
>Kaolin 11
>Whiting 20
>Silica 32
>Tin Oxide 5
>Chromium Oxide 0.15
>Excellent red/pink, purple/mauve where thick
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