I’ve found some celadons on the web, and two seem to be working quite well – a Lane blue celadon which tends to craze, but which when I put a copper red over it gives this result -

Tea pot celadon and copper red glazes

Tea pot celadon and copper red glazes

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And this is an olive green celadon which when I halved the red iron oxide to 2% gave a nice traditional green glaze which seems to be fairly craze resistant -

Small celadon jar

Small celadon jar

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