All Articles
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.Looking Back
Excerpts from CMJ published 50 years ago this month.
Brighter Days Ahead Reports Nevada Mining Association
A new report predicts brighter days for mining in Nevada if the price of gold maintains at current levels.
Fire Agate in Arizona
Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.
Melman on Gold & Silver
Fundamental information on gold and silver turned more to the bullish side this past month, and we can point to three particular items as the basis for that conclusion.
California State Panning Championships—Foresthill, CA Heritage Celebration
Here's the kicker—for every lost flake there was a five minute penalty added to the time. Lost gold generally meant you didn't make it past the preliminaries.
Nevada Miners: Check Your Claim Markers
The Nevada Senate introduced SB108 in 2009 to prohibit PVC piping utilized by miners to stake mining claims.
Mining Gold at 16,000 Feet
The view from the pass at 16,500 feet elevation was astonishing. In one direction, one range of the Andes Mountains rose to over 18,000 feet, while in the other direction the peaks soared to almost 20,000 feet.
Subscription Required:
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
