All Articles
Prospecting With a Magnetometer
December 1999 by Edgar B. Heylmun, PhD
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
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.
The Rocks that Burn—Part II Is Oil Shale the Answer?
Opinions among experts in the energy business concerning present day oil shale development vary widely. Some think that more stringent energy conservation measures would make large-scale development of lamosite resources...
Over the Divide
Robert Joseph Dahlke
(1939 - 2013)
The Bawl Mill
• Thieves bag a golden frog in museum heist...or do they?
• Aquarium workers ate protected sea turtle...
• Woman entitled to sue over being called "Monica Lewinsky"
• An Affair to Remember...
$50 Million in Gold From 1857 Shipwreck Approved for Sale
The gold is all for sale. Just one tiny coin alone could go for $1 million because of its combination of rarity and the history behind it...
Melman on Gold & Silver
While the election outcome is highly and hotly debated, yet another major portion of the world’s attention remains focused on developments with the COVID-19 pandemic itself...
Michigan DEQ Approves Upper Peninsula Mine
The Michigan Department of Environmental Quality approved permits allowing Kennecott Minerals, a subsidiary of Rio Tinto, to operate a nickel and copper mine in the Upper Peninsula.
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The Bawl Mill
• Over the Divide
• Our Readers Say
• Desert Phone Trashed
• ICMJ Elected Prospecting Magazine of 1999
• Advertising Manager Leaving ICMJ
• Guest Editorial—California "Special" Dredge Permits in Jeopardy
• The Search Continues
• Guest Editorial: U.S. Government—Like Nobody's Business
• Circulation and Collections Manager Leaving ICMJ
• Company Notes
• House Chair Requests Records on Forest Decision
• BLM Wants to Withdraw South Pass Public Land
• Silverton Preserving Lofty Symbol of Mining Era
• Hijackers Make Off With 660 Pounds of Gold
• 1999 Tables of Content
• Lighting the Way Underground 1860-1940s
• Millie's Tailings
• Picks & Pans: Crevicing & Sniping for Placer Gold
• Looking Back
• Gold in Sonora
• Forest Service Boss Quits in Bull Trout Flap
• Melman on Gold & Silver
• European Gold Miners Seek Clarification Letter
• Mining Stock Quotes and Mineral & Metal Prices
• Squeezing Diamond Into Graphite
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