History & Geology
Electrum: Gold and Silver Together
January 2016 by Chris Ralph
...if you are out prospecting and find something that looks very much like a nugget but has an odd greenish-gray cast to it, don’t be too quick to simply toss it aside as junk.
One Question, Forever Unanswered—Did He Really Find the Gold?
This was one of those stories where you have no doubt that the person telling it believes it to be true. But was it?
The Wild Rush to Find More Cobalt—Part I
While some future cobalt will come from recycling lithium batteries and other products, the coming huge need for cobalt is virtually a perfect storm of heavy demand and insufficient supply.
Ask The Experts
Sulfides and oxides—what's the difference between the two?
What Are Those Rocks In My Pan?
The placer mineral identification key is designed to answer this question. It attempts to recognize all the minerals in your gold pan concentrates.
The Geology of Diamond Deposits
New theories have been developed and they may lead to new discoveries and give prospectors some new insight on where to look for diamonds.
Undiscovered Placer Deposits in Alaska
These conditions don’t just apply to Alaska and the Yukon; they apply to western Canada and even to the mountainous western United States.
Las Médulas—The Gem of the Roman Gold Mines
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
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The Bawl Mill
• Ask The Experts
• Ask The Experts
• Ask The Experts
• Ask The Experts
• Detector Prospecting Accessories
• Drywashing Arizona Gold
• Mineralized Faults and Contacts in the Search for Gold
• Sunshine and Gold
• A Successful Trip Through Gold Basin
• Oregon Miners File for Summary Judgment
• The Significance of Nuggets in Placers
• The Strange History of the Utica Mine
• Forest Service Seeks to Lock Miners Out in South Dakota
• Maitland Bar Nugget to Go On Display
• Company Says Central Idaho Project Feasible
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
