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copper pyrites |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.05 sec. |
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copper pyrites: see chalcopyrite chalcopyrite (kăl'kəpī`rīt, kăl`kōpī'rīt) or copper pyrites ..... Click the link for more information. . How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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? Mentioned in | ? References in classic literature | |
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My host says that the two principal improvements introduced by foreigners have been, first, reducing by previous roasting the copper pyrites -- which, being the common ore in Cornwall, the English miners were astounded on their arrival to find thrown away as useless: secondly, stamping and washing the scoriae from the old furnaces -- by which process particles of metal are recovered in abundance. |
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copper pyrites
