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The Assay of High Iron Gold Ores
November 2000 by Bill Beckman
By employing this technique, one can use a larger sample size without having to resort to large crucibles and massive amounts of flux.Michigan House Votes to Give Mining Operations More Flexibility
Casperson said he is not worried about businesses subverting the language in the bill because the DEQ would still have the authority to halt the new construction if it is deemed environmentally unsound.
Picks & Pans: All That Glitters Pans Out Well!
Armed with my heavy bucket of gravel and, most importantly, my gold pan, I anxiously waded knee-deep into the mucky water. At the ready, the swish-swash splish-splash was all I heard as I hurriedly shook my gold pan, turfing out all the bigger bits of rock and clumps of mud. My clean clothes and even my face were soon splattered with mud in my race to pan as much gold in 20 minutes as my spindly arms would allow!
Picks & Pans: Gold Recovery in Placer Mining Operations
Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.
Using Structural Clues to Locate Buried Placer Channels
They must have assumed the paystreak was spotty and had been mined out, so they never mined as close to the side of the valley as they should have.
Pediments
A pediment is a broad, gently sloping erosion surface or plain of low relief that is often found in arid and semi-arid regions at the base of a receding mountain front. The example shown is from the Palo Verde Ranch 15-minute topographic quadrangle, southwest of Tucson, Arizona. This is one of the best examples the writer has ever seen.
The Significance of Nuggets in Placers
Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.
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The Bawl Mill
• Our Readers Say
• Enrichment of Gold Veins
• The Patch
• History of Mining—Bradshaw Mountains, AZ (Part I)
• Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine
• The Oretron
• Silver Hill, North Carolina
• Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites
• Hardrock in Downieville
• Looking Back
• Company Notes
• Gold in Northern Baja California
• California State Gold Panning Championship Results
• Melman on Gold & Silver
• V.P. Contender Addresses Mining Show
