Small Mining Operations
How to Refine Silver—Pt I
September 2019 by Roger Neuscheler
Silver refining has been used from ancient times to change the characteristics of the metal. Early metallurgists refined silver by heating it a couple hundred degrees above its melting point and holding the metal at an elevated temperature for a period of time.
Wealth Beyond Your Wildest Imagination
“Wealth beyond your wildest imagination.” Those were the words that were used to inform me of how much gold was in a paleo channel that exists beneath the present channel of the Similkameen River in the State of Washington; words that have echoed in my mind for the past sixteen years.
Large Gold Deposit Types
It is not necessary to have a PhD in geology, but you need to know the basics, so that’s what I am going to try to dig into here—the understandable basics of these gigantic gold deposits.
Hard Rock 101: Blasting With Kinepak Explosives
Fortunately, there are products on the market that can address these problems and make a small-scale mining operation feasible.
Hard Rock Milling: A Matter of Scale
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Gold Dredging on Oregon's South Umpqua
Familiarizing oneself with an unfamiliar part of the country is often a requirement of successful gold prospecting. In the pursuit of gold, it may become necessary for a prospector to branch out into new hunting grounds.
Gold Recovery with Centrifugal Bowls
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
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• An Update On The Father's Day Gold Discovery
• Exploring The Historic Rand Mining District, Southern California
• Disturbing Trend: Federal Judges Disregard Mining Laws
• My First Carolina Nugget
• Step-by-Step Crevicing
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• Mom Finds 3.72-Carat Yellow Diamond
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