All Articles
Placer Gemstones
December 2001 by Edgar B. Heylmun, PhD
Only the so-called “precious gems” will be considered in this article. They are diamond, ruby, sapphire, and emerald. A “gem” must be rare, hard, and durable, and possess a unique color or quality in order to be classified as a gem.Mining Stock Quotes and Mineral & Metal Prices
Disturbing Trend: Federal Judges Disregard Mining Laws
Recently, a left-leaning Arizona federal judge, James Soto, who is an Obama appointee, shut down a proposed copper mining project for the flimsiest of reasons. He basically disregarded and rewrote federal mining law.
Prospector Finds Cache of Emeralds in North Carolina
"This is just the tip of the iceberg," Hill said. "It's going to take 200 years to dig it all out."
Ask The Experts—Separating platinum from sands using bubbles
I am trying to find any information about using bubbles to separate platinum from sands and small particles. I think it has to have a surfactant in the process. Do you know of this bubble tech?
Ask The Experts
Is this a valid claim?
Company Eyes Reopening Mine Near Troy
Revett Silver Company, formerly Sterling Mining Company, hopes to reopen a dormant copper and silver mine near Troy, Montana, in the next six months because higher copper prices have made the operation practical, an executive said.
Legislative and Regulatory Update
• PLP continues the fight for miners' rights
• Oregon miners fight back
• Bills address strategic minerals
Subscription Required:
The Bawl Mill
• Our Readers Say
• 43 CFR 3809 Update
• Breccia Pipes
• Newmont Tries to Become World's Largest
• The Final Gold Strike of the Alaska Gold Rush—Livengood Stampede, 1914
• GATA Update
• Aussie Gold—A Look at Queensland
• Montana's Virginia City Has Golden Legacy
• Picks & Pans: Lost Below
• Gold in Iceland?
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
