All Articles
Looking Back
November 2004 by Staff
Excerpts from California Mining Journal, our original title, published 50 years ago this month.Mining Stock Quotes and Mineral & Metal Prices
Prospecting Underground: Use Caution
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.
The Fire Assay of Fly Eyes
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.
Aussie Gold—A Look at Queensland
Queensland produces about 25-28 tons of gold per year, which, while not in the same class as South Africa or North America, is still a respectable output.
The Notch Peak Intrusive
Located about thirty miles west of Delta, Utah, just to the north of Highway 6-50, is a tall rocky crag with an apparent notch missing from the peak. This is Notch Peak.
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The Bawl Mill
• Editorial: Montana's Controversial Rock Creek Mine
• First Load of Concentrate Leaves Reopened Ruth Mine
• Uranium Industry Enjoys Rebound as Prices Nearly Triple
• BLM Warning About Purchase of Mining Claims on the Internet
• Determining the Amount of Gold in a Quartz Specimen
• Placer PGMs in Coon Creek, California
• Getting Your Float Circuit Layout Right
• Pick Up Austria's New Coin—If You Can Lift It
• New Prospecting Guides Available Online
• Police Extend Detention of Newmont Executives
• Picks & Pans—Drywashing and Detecting in Southern California
• Over The Divide—Merwin (Merv) H. Hemp
• The Boludo Placers, Sonora
• The Golden Highway—Placer County
• Northwest Miners Rally a Success
• Mine Threat Just a Stunt to Criticize Land Laws
• MINExpo 2004 Convention Report
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
