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The Fire Assay of Fly Eyes
July 2002 by Dr. Ralph E. Pray
Colorado-Utah-Wyoming oil shale was first reliably discovered to contain gold and silver by the U.S. Bureau of Mines in the 1920s. Although most of this vast shale resource, up to 1,000 feet in thickness, contained nil or barely detectable values, many brown shale samples fire assayed here over the past thirty years have yielded up to 0.02 ounces per ton (opt) Au and 2.0 opt Ag.The Art of Finding Coarse Gold Part I—The Geology of Coarse Gold Formation
Recovering large, coarse gold nuggets is a very exciting experience, and the quest for large gold is often the “holy grail” of the independent prospector, no matter which type of equipment is used. Hefty, good-sized gold nuggets are...
The Bawl Mill
• Corectting misteaks
• It pays to resign
Cutbacks at S. African Mines—Britain Blamed
South African gold miners are turning their anger towards Britain, charging that the sale of 25 tons of gold by the Bank of England has depressed gold prices and put them out of work.
Legislative and Regulatory Update
• Bush probably could take back monuments. But would he?
• Oregon Group Needs Your Help
• Critical Habitat Proposed for California Red-legged Frog
Legislative and Regulatory Update
• Congress plays dirty with the Clean Water Act
• Quick action brings reward
• Proposed monuments
A Guide to Overlooked Gold Deposits—Part V (Conclusion)
This is the primary geological and mineral assessment agency in the US. Part of the Department of the Interior, the Geological Survey, often just called “The Survey” or USGS, has been in business since its founding in the 1800s. This means you can obtain publications all way the back to the early days of the survey...
How to Beat the Heat--and The Bedrock
The pit was a classic one—exposed shale bedrock with all the material being washed out one end of the pit. Within a few minutes I had a nice mellow signal that was in open ground.
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The Bawl Mill
• Our Readers Say
• Siskiyou National Forest Update
• Company Looks at Restarting Sunshine Mine
• Piedmont Gold
• Gold & The Dollar
• Picks & Pans: Exploring Wyoming's High Desert
• Sons of Gwalia & Herbert Hoover
• Looking Back
• Prospecting on the Yukon River
• Placer Gold in Arizona
• Bill Could Create New Silver Market
• 2002 Inductees to the National Mining Hall of Fame
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
• Mystery of Olmec Jade Solved
