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(Latin cuprum , from the island of Cyprus) It is believed that copper has beenmined for 5,000 years.
Copper occasionally occurs native, and is found in many minerals such as cuprite,malachite, azurite, chalcopyrite, and bornite.
Large copper ore deposits are found in the U.S., Chile, Zambia, Zaire, Peru, andCanada. The most important copper ores are the sulfides, the oxides, and carbonates. Fromthese, copper is obtained by smelting, leaching, and by electrolysis.
'The strength and weakness of physicists is that we believe in what we can measure. And if we can't measure it, then we say it probably doesn't exist. And that closes us off to an enormous amount of phenomena that we may not be able to measure because they only happened once. For example, the Big Bang. ... That's one reason why they scoffed at higher dimensions for so many years. Now we realize that there's no alternative... '