Minerals We Mine at Rosemont Copper

Rosemont Copper has a rare combination of copper, molybdenum, silver and gold in what is one of the largest unmined surface deposits in the country. Just what are these minerals and why are they so useful?

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Copper

Size of deposit: 4.2 billion pounds
Annual production: 243 million pounds
% of total US production: 10%
Annual production will satisfy 5% of U.S. needs

Uses: Electronics, aerospace components, computers, telephones, audio and visual equipment, money, electrical wiring, diesel engines, jet aircraft, submarines, subway cars, plumbing, roofing, appliances, flatware, furniture and much more.

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Molybdenum

Size of deposit: 95 million pounds
Annual production: 5.4 million pounds

Uses: Molybdenum is used principally as an alloying agent in steel and cast iron to improve hardness, strength, toughness, and wear and corrosion resistance.

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Silver

Size of deposit: 50 million ounces
Annual production: 2.9 million ounces

Uses: Jewelry and silverware, batteries, bearings, electronics, electroplating, photography, medical applications, mirrors and coatings, solar energy and water purification, and much more.

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Gold

Size of deposit: 300 thousand ounces
Annual production: 17 thousand ounces

Uses: Currency, jewelry, electronics, medical & dental applications, lasers, industrial equipment and much more.

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