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.Lamproites and Diamonds
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...
Ask the Experts - Old workings & tailings: What are my options?
Q: ...It’s a 2,000-acre property that was mined 100 years ago, still has the old workings, tailings, etc. I am looking to recover gold from the old waste/tailings... plus possibly strip mine some of it. What are my options?
Legislative and Regulatory Update
• Backdoor Wild Lands order
• PLP reports on latest dredge lawsuit
• Massive lands bill avoided
• No cap and trade for now
• RS-2477 rights affirmed
Michigan House Votes to Give Mining Operations More Flexibility
Casperson said he is not worried about businesses subverting the language in the bill because the DEQ would still have the authority to halt the new construction if it is deemed environmentally unsound.
Mining Stock Quotes and Mineral & Metal Prices
The Bawl Mill
• $5.1 billion Postal (dis)Service loss...
• Stop the money flow...
• Doubly, even triply, irresponsible and unpatriotic...
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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
