All Articles
Discovery of the Mountain Pass REO Deposit
May 2001 by Edgar B. Heylmun, PhD
How does one go about discovering a rare earth oxide (REO) deposit when he is not familiar with the rare and unusual rocks and minerals that are found in such deposits? That was the case at Mountain Pass, California, yet the deposit was eventually discovered and mined.Eastern Arizona: Gold and Base Metal Deposits—Part I
Arizona is well-known for its copper-gold porphyries and massive base metal-gold sulfide deposits such that primary gold deposits in the state are often overshadowed.
How to Field Evaluate A Placer Property
If there is misleading wording anywhere, it will be in the sample data and in reserve/resource estimates.
Searchers' Dreams
The story began in a southern Arizona mountain range...
Take it to Bedrock
Picking the right spot to placer has to do with years of experience, and a little luck. The textbooks can tell you where it should be, but sometimes the rules just don’t seem to apply.
Legislative Update
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
Washington Department of Fish & Wildlife Raises Harassment of Miners to a New Level
New regulations have given the enforcement arm of the WDFW official “police” status, with the authority to issue citations, pursue warrants, make arrests and confiscate items.
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The Bawl Mill
• Original Sixteen to One Goes to Court—Challenges MSHA Citations Part II
• The Golden Triangle of Sonora, Mexico
• Using Legal Subdivision
• Placer vs. Lode Gold
• Gold Tellurides: Tellurium, an Assay Impurity
• Court Hears Arguments Over Rights to Shipwreck
• Picks & Pans: How to Succeed in a Small Mine, A Case History: 1990-2000
• Charcoal Crucible Recipe
• Romance of the Old Silver King
• Record-Breaking Alaskan Nugget for Sale
• Company Notes
• Nevada Gold Production Up Despite Lower Prices
• Gold in Guatemala
• Bush Taps Utah Resident for Labor Post
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Honda Pares Down Use of Precious Metals in Autos
