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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...
Diamond Prospecting in Indiana
January 2015
My first personal experience with placer diamonds was on a gold prospecting trip in Indiana about 8 years ago, when a fellow prospector was cleaning his gold concentrates.
My first personal experience with placer diamonds was on a gold prospecting trip in Indiana about 8 years ago, when a fellow prospector was cleaning his gold concentrates.
San Manuel Mine Officially Closes With a Bang
February 2007
One of the largest underground copper mines in the world officially closed mid-January, as demolition crews blasted its twin smelter stacks.
One of the largest underground copper mines in the world officially closed mid-January, as demolition crews blasted its twin smelter stacks.
Ask the Experts
June 2014
• Recovering platinum
• Recovering platinum
Melman on Gold & Silver
September 2009
...while the public appears sold on the idea of imminent recovery and government politicians continually issue statements in support of that concept, several responsible columnists have issued their own predictions, and they are hardly optimistic.
...while the public appears sold on the idea of imminent recovery and government politicians continually issue statements in support of that concept, several responsible columnists have issued their own predictions, and they are hardly optimistic.
Research and Fieldwork Yield Some Promising Gold
October 2013
A week later, a small team of us hit it again, and this time the gold really showed up.
A week later, a small team of us hit it again, and this time the gold really showed up.
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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
