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Unit 4 Topic 9
The Unity Formula
Why can glazes with the same formulae display different qualities when compared after firing?
Glazes may not be what their unity formulae suggests they are.

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Errors are often made in calculating unity formulae.
There are many other factors other than the unity formula which effect the fired quality of a glaze.
Glazes with the same formula but different recipes are very rarely different in their fired state.
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