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blister copper

noun

, Metallurgy.
  1. a matte of from 96 to 99 percent copper, having a blistered surface after smelting because of gases generated during solidification.


blister copper

noun

  1. an impure form of copper having a blister-like surface due to the release of gas during cooling
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of blister copper1

First recorded in 1860–65
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Example Sentences

In "blister copper" (which is the unrefined metal), aluminium, silicon, and phosphorus may be met with.

It is again melted and tapped into sand moulds, the product being called blister copper.

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