Answer: cupel

AnswerCrossword Clue
CUPELSilver refiner
CUPELAssaying vessel.
CUPELPorous cup used in assaying.
CUPELReceptacle in which gold and silver are refined.
CUPELAssayer's receptacle.
CUPELAssayer's vessel
CUPELGold-assaying cup
CUPELAssayer's container
CUPELPorous pot
cupelto heat or refine in a cupel
cupelsmall, cuplike, porous container, usually made of bone ash, used in assaying, as for separating gold and silver from lead
cupelto refine gold or silver in a small vessel
cupelreceptacle or furnace bottom in which silver is refined
cupela small shallow porous cup especially of bone ash used in assaying to separate precious metals from lead