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Throw-Away Gold: Back to Basics
February 2002 by T.D. LaRune
Placer mining, whether for profit or recreational purposes, involves separation of free gold from the gold-bearing sands (gangue) of alluvial deposits by methods using specific gravity. The free gold can vary from 17 to 19.3 in specific gravity terms, depending on the alloy mix, which is usually silver, but can be copper, lead, sulfur, tellurium, antimony, or mercury.Additional articles that might interest you...
Legislative and Regulatory Update
April 2019
- Bishop and Curtis seek to rein in Antiquities Act abuses
- Lands bill signed by President Trump
Moving the World's Largest Machine—The Bucyrus 2570W Walking Dragline
August 2003
This project began in early August 2002, when approximately 12 major project forwarders were invited to bid on moving a Bucyrus Model 2570W Walking Dragline from the US to Australia.
This project began in early August 2002, when approximately 12 major project forwarders were invited to bid on moving a Bucyrus Model 2570W Walking Dragline from the US to Australia.
The Bawl Mill
January 2015
• Congressional "over"-spending bill is big win for big money
• Weapons of mass expenditure
• US taxpayers can celebrate yet another milestone
• Congressional "over"-spending bill is big win for big money
• Weapons of mass expenditure
• US taxpayers can celebrate yet another milestone
Gold in China
July 2004
China is an enormous country, behind only Russia, the United States (incl. Alaska), and Canada in size. It has a teeming population of 1.3 billion, far ahead of any other nation. Most of the population is jammed into the eastern half of China, with the western half being only sparsely inhabited. There are 5 western provinces...
China is an enormous country, behind only Russia, the United States (incl. Alaska), and Canada in size. It has a teeming population of 1.3 billion, far ahead of any other nation. Most of the population is jammed into the eastern half of China, with the western half being only sparsely inhabited. There are 5 western provinces...
Legislative and Regulatory Update
May 2009
• Mining reform introduced in Senate
• Obama signs lands bill
• Cap-and-trade
• Mining reform introduced in Senate
• Obama signs lands bill
• Cap-and-trade
Drywashing for Eluvial Gold in the Desert—Using a Portable Drywasher and Hand Tools
February 2005
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
Placer Gold in Utah
November 2001
Utah is not known for gold, but a significant amount has been produced. Over 12 million ounces of lode and placer gold have been produced from Bingham Canyon alone. However, placer production, per se, has been miniscule compared to other western states, although a lot of dry placers may remain undiscovered.
Utah is not known for gold, but a significant amount has been produced. Over 12 million ounces of lode and placer gold have been produced from Bingham Canyon alone. However, placer production, per se, has been miniscule compared to other western states, although a lot of dry placers may remain undiscovered.
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The Bawl Mill
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• Placer Gold in New Mexico
• Mining Deaths Drop to New Low in 2001
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• Aussie Gold—A Look at Victoria
• The Rand of South Africa
• Picks & Pans: Arizona Desert Drywashing Adventure
• 2001 World Gold Panning Championships
• Placer Gold Near Fairbanks, Alaska
• The "Drumstick"
• Company Notes
• Editorial
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
