All Articles
Metal Detecting for Gold Within Andesite and Basaltic Volcanic Mining Districts
May 2006 by Jim Straight
Andesites and basalts are the most common volcanic rocks in the North American Cordillera. The andesites originated within the earth’s continental crust, while the basalts originated within the mantle. According to the Plate Tectonic theory...
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The Tombstone Silver-Lead District, Arizona
April 2016
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
Mining Stock Quotes and Mineral & Metal Prices
February 2006
Looking Back
October 2004
Excerpts for CMJ published 50 years ago this month.
Excerpts for CMJ published 50 years ago this month.
Mining Stock Quotes and Mineral & Metal Prices
October 2005
Roosevelt: From Boom Town to Mountain Lake
August 1999
Roosevelt was a product of the Thunder Mountain boom, Idaho's last major gold rush.
Roosevelt was a product of the Thunder Mountain boom, Idaho's last major gold rush.
Ask the Experts - Old workings & tailings: What are my options?
February 2012
Q: ...It’s a 2,000-acre property that was mined 100 years ago, still has the old workings, tailings, etc. I am looking to recover gold from the old waste/tailings... plus possibly strip mine some of it. What are my options?
Q: ...It’s a 2,000-acre property that was mined 100 years ago, still has the old workings, tailings, etc. I am looking to recover gold from the old waste/tailings... plus possibly strip mine some of it. What are my options?
Breaking Rock the Old School Way
June 2013
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
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