INDIGO
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Nickel |
Vary |
Ox. |
8%-15% |
Use in high barium/zinc glazes.
Also likely to crystallize. |
Cobalt + Manganese |
Vary |
Both |
5%-10% |
Various mixtures in most glazes. |
Cobalt + Black Stain |
Vary |
Both |
5%-8% |
Various mixtures in most glazes. |
VIOLET
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Cobalt |
Vary |
Both |
5%-10% |
In high magnesium glazes. |
Nickel |
Vary |
Ox. |
1%-10% |
In some saturated-barium glazes. |
Manganese |
Vary |
Both |
5%-10% |
In high alkaline glazes. |
Copper |
Vary |
Ox. |
8%-10% |
In some saturated-barium glazes. |
PURPLE
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Copper |
6-10 |
Both |
8%-10% |
In high barium and barium/zinc glazes. |
Copper |
8-10 |
Red. |
1%-5% |
In copper red glazes opacified with titamium. |
Nickel |
Vary |
Ox. |
5%-10% |
In some high barium glazes. |
Cobalt |
Vary |
Both |
5%-10% |
In high magnesium glazes. |
Manganese |
04-10 |
Ox. |
5%-10 |
In high alkaline and barium glazes. |
Iron |
8-10 |
Red. |
8%-10% |
In high calcium glazes; likely to crystallize. |
Copper + Cobalt |
Vary |
Red. |
2%-8% |
Various mixtures in many glazes. |
Chrome + Tin +Cobalt |
Vary |
Ox. |
2%-8% |
Various mixtures in many glazes. |
MAUVE OR LILAC
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Cobalt |
Vary |
Both |
1%-5% |
In high magnesium glazes. |
Nickel |
Vary |
Ox. |
1%-5% |
In some saturated-barium glazes. |
PINK
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Cobalt |
Vary |
Ox. |
1%-3% |
In high magnesium glazes opacified with tin.
Also in very low alumina content glazes. |
Copper |
Vary |
Red. |
0.2%-2% |
In copper red glazes with titanium. |
Copper |
6-10 |
Ox. |
0.2%-3% |
In high magnesium or high alumina glazes. |
Copper |
8-10 |
Red. |
5%-10% |
In copper red glazes opacified with at least 5% titanium. |
Chromium |
Vary |
Ox. |
1%-2% |
In calcium glazes opacified with 5%-10% tin. |
Iron |
Vary |
Ox. |
1%-5% |
In calcium glazes opacified with tin. |
Rutile |
Vary |
Both |
5%-10% |
In high calcium and some ash glazes. |
Nickel |
018-010 |
Ox. |
1%-3% |
In high barium glazes with some zinc. |
Manganese |
Vary |
Both |
1%-5% |
In alkaline glazes opacified with tin or titanium. Also in high
alumina glazes. |
BROWN
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Iron |
Vary |
Both |
3%-10% |
In most glazes. |
Manganese |
Vary |
Both |
2%-10% |
In most glazes. |
Nickel |
Vary |
Both |
2%-5% |
In high boron, clacium and lead glazes. |
Chromium |
Vary |
Both |
2%-5% |
In high zinc glazes. |
Umber |
Vary |
Both |
2%-10% |
In most glazes. |
Limenite |
Vary |
Both |
2%-10% |
In most glazes. High calcium may yeild a bluish tint. |
Rutile |
Vary |
Both |
5%-10% |
In most glazes; golden brown. |
GRAY
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Iron |
Vary |
Red. |
2%-4% |
In many glaze bases; gray brown. |
Iron Chromate |
Vary |
Both |
2%-5% |
In most glaze bases without zinc or tin. |
Nickel |
Vary |
Both |
2%-5% |
In most glaze bases; gray brown. |
Copper |
8-10 |
Both |
3%-10% |
In high magnesium glazes. Warm gray in reduction; cold gray in oxidation. |
Cobalt + Nickel |
Vary |
Both |
1%-5% |
Blue gray in most glazes. |
Cobalt + Manganese |
Vary |
Both |
1%-5% |
Blue gray to purple gray in most glazes. |
Black Stain |
Vary |
Both |
1%-5% |
Shades of gray in most opacified glazes. |
BLACK
|
COLORANT |
CONE |
ATMOS. |
% |
COMMENTS |
Iron |
Vary |
Both |
8%-12% |
In high calcium glazes--the temmoku range. |
Copper |
Vary |
Both |
8%-10% |
In a wide range of glazes. |
Cobalt |
Vary |
Both |
8%-10% |
Blue black in most glazes except those high in zinc and magnesium. |
Manganese |
Vary |
Both |
8%-15% |
Brown black in most glazes. |
Copper + Manganese |
Vary |
Both |
10%-20% |
In most glazes; sometimes lustrous. |
Uranium |
Vary |
Red. |
5%-10% |
In most glazes. |
Cobalt + Iron + Manganese |
Vary |
Both |
5%-10% |
Various mixtures in most glazes. |
Cobalt + Iron + Chromium |
Vary |
Both |
5%-10% |
Various mixtures in most zinc-free glazes. |
Black Stain |
Vary |
Both |
3%-10% |
In most zinc-free, nonopacified glazes. |