All Articles
Precious Metals in the Patagonia Mountains
August 2003 by Edgar B. Heylmun, PhD
The Patagonia Mountains are a small but rugged mountain range that adjoins the Mexican border some 9 to 16 miles east of the border town of Nogales. The range trends northerly for 14 miles and is about 10 miles wide, reaching an elevation...
Enrichment of Mineral Deposits by Weathering—Part II
While both zinc and lead deposits also are enriched by the surface weathering process, in part two we will look at the enrichment process for copper and also gold deposits, and at the interpretation of leached outcrops to figure how rich the concentrated deposits below them may be.
Detecting Alone -- What to Look For
I figure there are a lot of new people out there who have the same question. I will try to give some answers that hopefully will give you more confidence in finding your own spots.
Training Videos From NIOSH
Mining safety professionals can take advantage of training videos provided by the National Institute for Occupational Safety and Health.
Tiffany & Co. to Open Plant in Northern Canada
Tiffany & Co. plans to open its first diamond cutting and sorting plant early this year in conjunction with its investment in a diamond mine in Canada’s Northwest Territories.
Legislative and Regulatory Update
• Resolution Copper project moves closer to fruition in Arizona
The Canton Lead
As the great Australian gold rushes of the 1850s gathered momentum, hopeful prospectors rushed from all parts of the globe, not least among these were the ubiquitous Chinese.
$50 Million Swiped in Diamond Heist
Eight masked gunmen forced their way through the security fence at Brussels’ international airport, drove onto the tarmac and snatched some $50 million worth of diamonds from the hold of a Swiss-bound plane without firing a shot.
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The Bawl Mill
• House Resources Committee Addresses Environmental Scare-Tactics —by House Resources Committee & Chairman Richard Pombo
• Over the Divide
• Idaho-Maryland Mine—History Restarted
• Montana Candidate Sees Natural Resources as Path to Recovery
• Judge Rules Against Oregon Miners—Battle Continues
• Lake County "Diamonds"—Renewed Value for an Old Favorite
• Moving the World's Largest Machine—The Bucyrus 2570W Walking Dragline
• Mother Lode Gold, California
• News From the Pacific Legal Foundation
• Melman on Gold & Silver
• Maine to Create Mineral Park
• Mining Stock Quotes and Mineral & Metal Prices
