All Articles
Epithermal Gold-Quartz Veins
January 2004 by Edgar B. Heylmun, PhD
The great mining geologist Waldemar Lindgren used the word “epithermal” to describe a type of quartz vein commonly found in desert regions of the United States and Mexico.The Bawl Mill
In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill
In 2005, my wife and I, along with our supervisor Horacio, made numerous business and supply trips from Arivechi, Sonora, to the capital of Sonora, Hermosillo. This is a distance of 135 miles along a very narrow paved mountain road.
Fall Drywashing—Just the Right Time of Year
I could see lots of quartz, both loose on the hillsides and in the numerous small prospect diggings. There was a small gold rush here more than a century ago.
The Business of Mines—Consider Your Tax Deductions Now
Uncle Sam, the not-so-silent partner of every miner, dredger and prospector is willing, using our tax laws, to help reduce out-of-pocket expenditures necessary to acquire business assets and property. In addition to the well-known depreciation deduction, however, the tax laws permit tax write-offs for other, less tangible business assets. The best time to explore and lock-in many of these overlooked and misunderstood deductions is now, well before the end of the tax year.
Geologists Locate Giant Gemstones
W. Dan Hausel, Senior Economic Geologist with the Wyoming State Geological Survey (WSGS), has been successful at finding new mineral deposits and occurrences.
Nevada's Silver City Gold District -- Part II
May 2016...this district has had a continuous life of gold mining and milling that spans 150 plus years, and it appears that it will keep pressing on for many more years of production.
Metal Detector Testing Methods
It will not be any easier than on your table at home, and so testing a very small test target like the ballpoint pen can tell you immediately if a detector is suitable for looking for tiny gold nuggets.
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The Bawl Mill
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