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black copper |
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black copper [¦blak ′käp·ər] (metallurgy) The more or less impure metallic copper (70-99% copper) produced in blast furnaces when running on oxide ores or roasted sulfide material. 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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| In this case, the globe thermometer is a black copper ball, 6 centimeters in diameter, into which is inserted a temperature-standard thermometer with a 30[degrees]-to-120[degrees] F range. Oxide mineralization occurs as black copper minerals and malachite within residual dolomite overlying the Grand Conglomerate in a stratigraphic position equivalent to the Lonshi ore body. Seraphim, Treminco's consulting geologist for the El Magistral Project, reports that within the trenches sampled, the copper appears mainly as a black copper oxide (tenorite). |
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