Large Scale Mining
Prospecting for Copper Ores—Part I
June 2012 by Chris Ralph
Copper is one of the metals that form the backbone of our modern civilization. Copper is an essential part of every computer, cell phone, automobile and household appliance.
Feds Deny Lease Renewals for Minnesota Mine
Two longstanding mineral rights leases that are critical for a proposed large underground copper-nickel mine upstream from the Boundary Waters Canoe Area Wilderness in northeastern Minnesota will not be renewed, two federal agencies announced…
Extraction of Precious Metals Using Froth Flotation
Without this versatile group of technologies, we would be hard-pressed to produce the metals so critical to our modern way of life. The robust mining industry of today would literally not exist.
21st Century American Gold Rush: Rare Earth Elements
The burning question I needed answered was why didn’t the deposit ever get mined of at least one of the valuable minerals? A couple of reasons have come to light.
Mining Returns to Historic Comstock
Mining has returned to Nevada’s historic Comstock more than 150 years after the discovery of one of the world’s richest silver veins touched off a frenzy that drew thousands of people west. But unlike the hard rock miners in the 1800s, the modern day operation involves huge trucks...
Comstock Mining Gets Approval
The approval, which affects 87 acres on the south end of Silver City, allows the company to move forward with exploration to determine the area's mining potential.
Time to Come Home
The need to bring mining back to North America is more urgent than ever.
Re-Opening Nevada’s Relief Canyon Mine
When I read about these new discoveries, I often wonder how the original operators ignored all the additional ore. Yet this has happened again and again in Nevada and many other places.
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The Bawl Mill
• Our Readers Say
• Iowa Hill District
• Gold Deposition and Gradients of Placer Streams—Part I
• Pursuing Rare Earths in Wyoming
• The Mole
• Repair / Replace Tax Rule Changes
• The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector
• Colorado Mining Association Appeals Roadless Ruling
• Ganes Creek Hits 10 Years—Part II
• Fifteen and Counting
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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