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As Millennium Nears, Copper No Longer King in Arizona
May 1999 by Associated Press
At the start of the 20th century, copper was king in Arizona, with one of every four workers employed in the mining trade. On the brink of a new millennium, however, the industry is no longer the cornerstone of the state's so-called "Five Cs" economy—copper, cattle, cotton, citrus and climate.Ask the Experts
• How do I clean up gold encrusted with iron-sulfides?
More Treasure From Sunken Ship
Gold chains, silver coins and bars of solid gold glittered in the tropical sun as the family of famed treasure hunter Mel Fisher showed off another significant find from a sunken Spanish galleon.
Ask The Experts: Nickel assays
Q: Our group has found a nickel deposit in the Yuma, Arizona area that is similar to the one that you wrote about...
Ask the Experts
Gold in Minnesota?
Picks & Pans: Prospecting for Lode Gold
Most of the world's ore deposits have been found by prospectors, not by geologists nor mining engineers. This article has been prepared with this fact in mind.
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