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en.wikipedia.org/wiki/Refining_(metallurgy)

In metallurgy, refining consists of purifying an impure metal. It is to be distinguished from other ... One ancient process for extracting the silver from lead was cupellation. Lead was melted in a bone ash 'test' or 'cupel' and air blown across the ...

www.britannica.com/technology/silver-processing

Lead ores were smelted to obtain an impure lead-silver alloy, which was then fire refined by cupellation. The best-known of the ancient mines were located at ...

www.hopefortheheart.org/july-2013-letter-from-june-on-trials

In both the Old and New Testaments, we find numerous references to the refining of gold and silver . . . as a parallel of God's refining us through painful trials.

www.ask.com/youtube?q=How+Is+Silver+Refined%3F&v=_8QhipbbA3Q
Feb 21, 2013 ... Mr. Dean Marzofka shares a lesson with ILC College & Sem students on silver refinement and the spiritual insights that can be drawn from it.

biblehub.com/topical/r/refining.htm

The ancient process of refining gold has already been described under METALLURGY (which see). Most of the Bible references are to the refining of silver ...

www.biblestudytools.com/encyclopedias/isbe/refiner-refining.html

The ancient process of refining gold has already been described under METALLURGY (which see). Most of the Bible references are to the refining of silver ...

www.coinandbullionpages.com/silver-gold-science/what-is-silver-refining.html

Silver refining is the process of chemically or electromechanically treating silver in order to purify it from any impurities found in the metal, either due to nature, ...

www.therefinersfire.org/refiners_fire.htm

It was called "Refining Silver" and its meaning, though simple, was extremely powerful. In short, it is a quick lesson on how a silversmith refines silver - a lesson  ...

www.madehow.com/Volume-3/Silver.html

Silver was one of the earliest metals known to humans, and it has been .... To extract silver from copper-containing ores, an electrolytic refining process is used.