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cupel

cupel MÉTAL

cupel INDUSTR

glowing cupel

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Cupel sizes depend on the amount of material to be assayed. en.wikipedia.org

A shallow depression in the centre of the cupel was made with a rounded pestle. en.wikipedia.org

After the litharge has been absorbed by the cupel, buttons of silver were formed and settled in the middle of the cupel. en.wikipedia.org

In fire assay, magnesite cupels can be used for cupellation as the magnesite cupel will resist the high temperatures involved. en.wikipedia.org

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