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| Oxide | Analysis | Formula | Tolerance | 
|---|
| Typecodes | 
Colorant
 Metallic based materials that impart fired color to glazes and bodies.  | 
| Glaze Color | Some of these pigments are made of chrome-tin pink and cobalt. Sufficient calcium is needed in the host glaze to support the "red" side of the mixture or it may fire blue. | 
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