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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.The Bawl Mill
• Uncle Sam throws one heck of a party!
• Senator needs to slow down and reconsider his bill
• Your passport may have more mileage than you do
From the Editor
There are several news items of interest here at ICMJ’s Prospecting and Mining Journal.
Tales of California Gold Discoveries 1st in a Series—Yankee Jim's
Most everyone has heard the term “gold is where you find it’” and probably have read how James Marshall, in 1848, while inspecting the mill-race ditch that had been dug to supply water for the saws at the sawmill that he was building for John Sutter, ended up finding the first pieces of gold within the ditch along the South Fork of the American River...
Mineralized Calderas in Colorado
A caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.
1999 Tables of Content
Celebrating California's Golden Sesquicentennial & A Century of Mining
The Manson Mine
The Manson Mine. That’s what they called it in Ballarat in 1969. The name stuck even after Crazy Charlie Manson and the girls got hauled out of California’s Panamint Range behind Ballarat in handcuffs and ended up in prison for the Tate-LaBianca murders.
Bigger and Better—Gold Prospecting & Mining Summit Recap
Our second year’s Summit, held over five days in mid-May, was even bigger and better than last year’s gathering. We had more vendors, more hands-on classes and a very full slate of lectures and presentations. Over 2,300 prospectors attended...
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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
