Definition of "cupelling" []

• Present participle of cupel. (verb)

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• "I burned and crushed bones to make my bone-dust for cupelling, and thus provided made nearly forty assays, some of which were afterwards checked in Adelaide, in each instance coming as close as check assays generally do."
• "Make a preliminary assay by cupelling 0.1 gram of the alloy with 1 gram of assay lead; calculate the percentage composition."
• "The alloy left after cupelling was made up of 1 part of gold to"