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

Word History and Origins

Origin of blister copper¹

First recorded in 1860–65

Example Sentences

The plant produces blister copper, which contains almost entirely copper with 3% of other precious metals.

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