All Articles
Molybdenum
October 2004 by Edgar B. Heylmun, PhD
Molybdenum, referred to as “molly” by miners, is a white metal that is alloyed with iron to form hard, tough and strong steel. It was first used in World War I for armor plate on ships. Nowadays, molybdenum is routinely used to harden structural and tool steel, and to reduce corrosion.Additional articles that might interest you...
Clean Fuel, Cleaner Air
February 2001
A-55 Clean fuels, which are emulsions of oil and water, are said to produce much lower oxides of nitrogen and particulate matter emissions.
A-55 Clean fuels, which are emulsions of oil and water, are said to produce much lower oxides of nitrogen and particulate matter emissions.
Melman on Gold & Silver
April 2008
“What A Difference A Day Makes.” That song title accurately describes the huge change in momentum that occurred March 11, 2008, when the central banks of the world announced their rescue plan for the beleaguered international credit system, which appeared to be crumbling right in front of their very eyes.
“What A Difference A Day Makes.” That song title accurately describes the huge change in momentum that occurred March 11, 2008, when the central banks of the world announced their rescue plan for the beleaguered international credit system, which appeared to be crumbling right in front of their very eyes.
The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
July 2007
Hardrock mining is usually done on a large scale, and although a few small-scale hardrock operations still exist, it’s not an easy operation to start up and run profitably.
Hardrock mining is usually done on a large scale, and although a few small-scale hardrock operations still exist, it’s not an easy operation to start up and run profitably.
Rattler's Gold
January 2011
Rick donned a pair of fiberglass shin guards that he normally wore dredging, just in case he uncovered the rattlesnake during his digging and rock moving. I wasn’t convinced they were going to provide enough protection.
Rick donned a pair of fiberglass shin guards that he normally wore dredging, just in case he uncovered the rattlesnake during his digging and rock moving. I wasn’t convinced they were going to provide enough protection.
Prospecting for Diamonds
January 2013
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
The Fence
October 2009
When I dropped the boulder into my son’s hand everyone spoke a single word in unison, “Wow!”
When I dropped the boulder into my son’s hand everyone spoke a single word in unison, “Wow!”
The Golden Highway—El Dorado County
August 2004
Continuing northward and crossing the Consumnes River along California’s famed Highway 49, the “Golden Highway” leads through the heart of the Mother Lode countryto El Dorado County. This is where the Gold Rush began...
Continuing northward and crossing the Consumnes River along California’s famed Highway 49, the “Golden Highway” leads through the heart of the Mother Lode countryto El Dorado County. This is where the Gold Rush began...
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The Bawl Mill
• Update: Forest Service Interim Rule
• VMS Deposits in Central Arizona
• The Guyana Highlands
• Prospecting with a VLF-Type Gold Detector
• Freegold Ventures' Golden Summit Project
• Picks & Pans: Working the Crevices
• 2004 California State Gold Panning Championships
• Company Notes
• Why Environmental Groups Prefer Kerry
• The French Mines of El Boleo
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
