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cupelling

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CUPELLING definition in American English - Collins Dictionary
1. a refractory pot in which gold or silver is refined 2. a small porous bowl made of bone ash in which gold and silver are recovered from a lead button during ... www.collinsdictionary.com
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Cupellation - Wikipedia
Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations en.wikipedia.org
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Alchemy! Part 5 - Cupelling (recovering the gold) - YouTube
Cupelling or Cupellation. Alchemy!? Well no. I have not yet been able to turn lead into gold. Although the Cupel process sure looks like it. www.youtube.com
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cupelling
cupelling, vbl. n. (ˈkjuːpəlɪŋ) [f. cupel v. + -ing1.] = cupellation.1644 Digby Nat. Bodies x. (1657) 102 In the coppelling of a fixed metal. a 1691 Boyle Wks. III. 453 (R.) The quick melting down of ores, and cupelling of them. b. attrib. and Comb., as cupelling-fire, cupelling-furnace.a 1691 Boyle... Oxford English Dictionary
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CUPEL Definition & Meaning - Merriam-Webster
cupelled or cupeled; cupelling or cupeling. transitive verb. : to refine by means of a cupel. cupeller noun. Word History. Etymology. Noun. French coupelle ... www.merriam-webster.com
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Cupelling help | Gold Refining & Metal Extraction Forum
Yes, cupels should be pre-heated, it expels moisture and prevents the molten lead pool from spitting. goldrefiningforum.com
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cupellation
cupellation (kjuːpəˈleɪʃən) Also 8 copp-, cupp-. [f. cupel v. + -ation, after F. coupellation.] The process of assaying or refining the precious metals in a cupel; the separation of silver from argentiferous lead, on a large scale, on a cupel.a 1691 [see cupelling b]. 1750 Phil. Trans. XLVI. 586 Tha... Oxford English Dictionary
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Cupellation – Antique Jewelry University
Cupellation is used to either indicate a precise, analytical method of metal purity testing or a certain way of refining precious metals. www.langantiques.com
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cupelling, n. meanings, etymology and more | Oxford English ...
There is one meaning in OED's entry for the noun cupelling. See 'Meaning & use' for definition, usage, and quotation evidence. www.oed.com
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Easy DIY Gold & Silver Refining Process At Home, No ... - YouTube
Gold & silver refining using the cupelling process for removing base metals (copper, lead, iron, antimony, zinc, etc) from our smelted gold ... www.youtube.com
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Cupellation - 911Metallurgist
The muffle is brought to a uniform orange- red heat before the cupellation is begun and no fresh fuel is added during the operation. www.911metallurgist.com
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Bottom-blown oxygen converter
accretion that had been generated in the small-scale tests, due to the variation in temperature and bullion composition that occurred throughout the cupelling wikipedia.org
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cappell
▪ I. capel1 Min. (ˈkeɪp(ə)l) Also caple. A composite stone of quartz, schorl, and hornblende, occurring in the walls of tin and copper lodes (Raymond Mining Gloss. 1881).1801 Hitchins in Phil. Trans. XCI. 162 The copper lode is filled with layers of ore and stony matter, the latter of which is here ... Oxford English Dictionary
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brightening
▪ I. brightening, vbl. n. (ˈbraɪt(ə)nɪŋ) [see -ing1.] 1. The action of making or becoming bright; illumination. lit. and fig.1552 Huloet, Bryghtnyng, or brandishynge, vibratio. 1674 N. Fairfax Bulk & Selv. 51 The brightning of our Island. 1712 Steele Spect. No. 461 ¶4 Bestow upon it a few Brightning... Oxford English Dictionary
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cupel
▪ I. cupel, n. (ˈkjuːpəl) Also 7–8 coppel, cuppel, (7 copel(l, coppell, -ill, -le). [a. F. coupelle (15th c.), med.L. cūpella, dim. of cūpa cask, to which the current form is adjusted.] 1. A small flat circular porous vessel, with a shallow depression in the middle, made of pounded bone-ash pressed ... Oxford English Dictionary
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