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Lamproites and Diamonds
November 2002 by W. Dan Hausel
Most prospectors are aware that diamonds are sometimes found in kimberlite, but few are aware that diamonds are also found in another rock type known as lamproite. Lamproite is a very rare volcanic rock that often...
Exploring A Historic Lode Mine
Climbing up the debris, I pointed my flashlight up a shaft ascending straight up as far as my light would shine. It was the stope of the pay shoot leading to the old tunnel above!
Guest Editorial—President's Land Plan Implements Unratified Treaty
"The President's plan to lock-up an additional 40-million acres of wilderness in 35 states, is a blatant step toward the total implementation of the aims of the unratified Convention on Biological Diversity."
Melman on Gold & Silver
…money creation by central banks… could even accelerate further as governments desperately seek to stimulate some sort of powerful economic growth. Historically, rapid money creation rates have been positive for gold and silver.
The Golden Streams of Butte County, California
Even though these were some of the earliest placer deposits to be worked, there is still plenty of gold left today—it just takes more work to recover. Knowing about the old locations where gold has been found is the first step to success.
Our Readers Say
In response to "Fake Assays and Assayers", ICMJ September 2000...
Mining Pegmatite Deposits
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
National Hall of Fame Names 2017 Inductees
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The Bawl Mill
• Our Readers Say
• Working the Belmont Mine, Butte, Montana—1953 (Part 2)
• A Real Placer Miner
• Mojave Desert Gold
• Miner Unhappy After Judge Dismisses Charges
• Picks & Pans: Fig Tree, Grape Vine and Good Gold
• Sluicing on Bedrock
• Sandstone Silver in Texas
• A Few Prospecting Notes From Jim Straight
• Explorers to Salvage Gold-Laden Ship
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
