All Articles
Evaluating a Placer Discovery
March 2000 by Dr. Ralph E. Pray
Gold mineralization is usually first noted in an area by examining material weathered from the source and liberated or washed downhill from it.
Additional articles that might interest you...
California Suction Dredging Update
July 2012
Another California Assembly member, Jared Huffman, is attempting to ban dredging in the state on a more permanent basis.
Another California Assembly member, Jared Huffman, is attempting to ban dredging in the state on a more permanent basis.
Treasures for Sale
March 2000
A Wolfeboro company will sell portions of one of the most talked about treasures in American history.
A Wolfeboro company will sell portions of one of the most talked about treasures in American history.
Throw-Away Gold: Back to Basics
February 2002
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.
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.
Melman on Gold & Silver
January 2002
What a difference a year makes. It makes one wonder if we still live on the same planet!
What a difference a year makes. It makes one wonder if we still live on the same planet!
Roosevelt: From Boom Town to Mountain Lake
August 1999
Roosevelt was a product of the Thunder Mountain boom, Idaho's last major gold rush.
Roosevelt was a product of the Thunder Mountain boom, Idaho's last major gold rush.
Legislative and Regulatory Update
July 2008
• Latest assault on dredging in California
• Travel Management Plans
• Latest assault on dredging in California
• Travel Management Plans
Government to Buy New World Mine Claims
April 2008
A conservation group said it has an agreement to purchase nearly 1,500 acres of private mining claims northeast of Yellowstone National Park.
A conservation group said it has an agreement to purchase nearly 1,500 acres of private mining claims northeast of Yellowstone National Park.
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The Bawl Mill
• Group Sues Feds Over New Nat'l Monuments
• Tribe Joins Idaho in Roadless Suit
• 10,000 Shovels Back Protest
• Letter to the Editor—From Mike Miller, President, Original Sixteen to One Mine
• U.S. Dept. of Interior Inspectors in Arizona
• Wyoming Tops in Royalties
• Sunnyside, Arizona
• Company Notes
• Treasures for Sale
• "Gold" Coin Debuts
• Picks & Pans: Prospecting at Mills Creek, Alaska
• Delamar District, Nevada
• Millie's Tailings
• Adventure at the 420 Level
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
