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As Millennium Nears, Copper No Longer King in Arizona

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.

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Bering Sea Gold—Part II


In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...

Critical Minerals: Titanium—Part II


There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.

Mining Stock Quotes and Mineral & Metal Prices


Mining Stock Quotes and Mineral & Metal Prices


Oil Seeps in Arizona


Compared to California, Arizona has virtually no oil seeps. But, the great Permian Basin of West Texas has virtually none either. Arizona has something that neither California nor Texas have, and that is public lands that are open for leasing. The northern half of Arizona has more seeps and is thus of greater interest, but it would be foolish to disregard the southern half because giant oil and natural gas fields could underlie some of the broad desert valleys.

Choosing The Right Detector Coil


Every machine has its own adjustments and settings, but one of the most important ways to increase the capabilities of whatever detector you own is through the use of accessory coils.

Building A Mine—Dust Devil Sunstones


sunstones from the Dust Devil Mine in OregonEstablishing a gemstone mine, like any other mining operation, is a difficult proposition. This is especially true if you are starting out from scratch without loads of money to get the business going.

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