Small Mining Operations
The Basics of Exploration Leases and Contracts—Part II
March 2019 by Chris Ralph
This is the point where you might ask, “What do these types of contracts typically look like and how are they negotiated?” Well, that is the topic of this month’s article.
Care and Lubrication of a Model 13 Laboratory Wilfley Table
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size. For this reason, I took a good look at each of the samples.
Proper Assaying of Placer Samples
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.
Wyoming's Billion Dollar Nugget—The Trilogy Ends
The next hurdle to jump was whether the trommel motor would start again after sitting on the desert for six years without being started. The last time it had taken a three foot pipe wrench to bust it loose.
Bering Sea Gold—Part II
In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...
Ophir—Possibly the Best Kept Secret in Alaska—Part II
I knew the nuggets got into the nugget patch somehow, I just had to figure out how and from what direction they came.
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.
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The Bawl Mill
• Ask The Experts - Any references on gold formation?
• Ask The Experts - Finalizing an agreement with a mining company
• Pumping Water With Solar Power
• My Introduction To Gold Prospecting
• Resurrecting An Old Hard Rock Mine—Safety Is No Accident
• Mining Claims: Breaking All The Commandments
• The Importance Of Mining Critical Minerals In The USA
• Gold Prospecting for Better or Worse: Gold Is Where You Find It
• Detecting for Gold: A Return to Familiar Ground
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices








