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.The Bawl Mill
• What goes up, must come down.
The Bombarded 38' Parallel
A 1,200-mile long east-west zone, containing unusual geologic features, has been recognized in the eastern half of the United States for over 100 years. It coincides, in a general way, with the 38° parallel. There are as many opinions on the origin of the features as there are geologists. Most of the features are circular or oval in form, and some are concealed by younger rocks. They are found in 8 states, from Kansas east to Virginia.
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Company Notes
• Coeur d'Alene Mines Corp.
• Northern Dynasty Minerals Ltd.
• Kimberly Gold Mines, Inc.
• SpectrumGold Inc.
PLP Update
We are in the planning stages for our next trip to DC. Clark and I are looking at returning after the mid-term elections, probably around the end of November or early December, to continue discussions with members of Congress…
Mergers Continue at Record Pace
Mergers and acquisitions continue at a record pace in 2006 as companies attempt to replace dwindling reserves. Mining companies find that it is more expedient to purchase additional reserves by acquisition than to spend time and money for exploration and startup, even more so when their stock prices are much higher as compared to recent years.
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
