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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.Legislative and Regulatory Update
• BLM Proposes suspension of 3809 regulation changes
• Monuments addressed by new administration
• Progress made on Clinton's Roadless Rule
• Changes at USFS
• Federal agencies pull back salmon biological opinion
Company Notes
• Coeur d'Alene Mines Corp.
• Northern Dynasty Minerals Ltd.
• Kimberly Gold Mines, Inc.
• SpectrumGold Inc.
Ask the Experts
• How to find info on a particular mining claim
Looking Back
Excerpts from CMJ published 50 years ago this month.
Mother Lode Leaf Gold
After removing about six inches of dirt and cobbles, the sound was a bit more recognizable. I was now confident that there was a definite target and not just a ground noise.
The Goldfield Mining District, Nevada—Part II
The majority of the gold produced in Goldfield has come from ores that are close enough to the surface to be oxidized by the air. This oxidized ore is normally a soft, shattered, earthy material usually stained yellow to brown by oxides of iron.
Subscription Required:
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
