2-1/2" Premium Bone Ash Cupel
2-1/2" Premium Bone Ash Cupel is ut of stock and will ship as soon as it is back in stock.
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These small, cup-like and porous containers feature a hemispherical depression design that focuses the heat on the center. They are ideal for fire assaying purposes, and for collection gold and silver from lead. They typically absorb about 90% of the lead (10%) turns into an oxide that will be released into the atmosphere. *Please use in a well-ventilated area.
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