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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...
Soft Rock Excavation Techniques
December 2022
Clinton Declares Three More National Monuments
February 2000
President Clinton took a helicopter tour of the Grand Canyon yesterday, then put his pen to paper to designate three more areas as national monuments and expand several others.
President Clinton took a helicopter tour of the Grand Canyon yesterday, then put his pen to paper to designate three more areas as national monuments and expand several others.
Melman on Gold & Silver
July 1999
Clearly, the single-most important reason for the latest decline in gold is the recently announced auctions by the British Central Bank. However, other news stories this past month also had negative implications for the yellow metal.
Clearly, the single-most important reason for the latest decline in gold is the recently announced auctions by the British Central Bank. However, other news stories this past month also had negative implications for the yellow metal.
The Bawl Mill
June 2015
• Ripe for the picking
• Ripe for the picking
Ask The Experts - Is this gold?
September 2017
Our Readers Say
September 2011
Legislative and Regulatory Update
March 2009
• Senator Reid fails mining industry
• Change you can believe in
• Senator Reid fails mining industry
• Change you can believe in
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The Bawl Mill
• Federal and State Biologists Accused of Planting Evidence
• Placer Gold in New Mexico
• Mining Deaths Drop to New Low in 2001
• Prospecting for Meteorites with a Metal Detector
• 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
