Prospecting & Detecting
Proper Assaying of Placer Samples
November 2012 by Jim Halloran
The whole purpose of sampling mineralized ground is to measure the values in a small volume of material that would be representative of a much larger volume of similar material. The key word is representative. Chemical and fire assaying will not accurately represent placer deposits by themselves.Mining Company Pays Millions for Gold Dug From Mine Dumps
Through a program that began in 2011, Barrick Gold Corp.-owned Golden Sunlight has paid out more than $45 million to small miners in the last seven years...
A Trip Down the Yukon River
My girlfriend Beth and I decided to take our canoe down the Yukon and do some gold dredging...
Colorado to California for Gold
The total after a great day added with the previous days put them up to 9.07 pennyweight—just under a one-half ounce of beautiful California gold.
Gold 1822 Half Eagle Fetches Record at Auction
The coin trading world has a new gold standard, after the only known 1822 half eagle $5 piece in private hands sold at auction in Las Vegas…
Mineralization, Ground Balance and Metal Detecting
The right ground balance setting for the conditions you are working is critical. If your detector isn’t set properly, you will lose depth of detection, sometimes to an extreme degree.
It Pays to Know Your Bedrock
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
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.
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• The Portable XRF Gun
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• The Struggle to Reopen Alaska's Largest Gold Mine
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