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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.Additional articles that might interest you...
All That Glitters is Gold
April 2002
Or is it? These man-made nuggets first started appearing on some of the Internet auction sites in the summer of 1999, at which time I became a little suspicious and purchased two of them.
Or is it? These man-made nuggets first started appearing on some of the Internet auction sites in the summer of 1999, at which time I became a little suspicious and purchased two of them.
Common Mistakes of the New Detectorist
August 2013
Detecting is not very complicated and the rewards can be tremendous. The difference between success and fruitless toiling can be remedied by a few small adjustments and a whole lot of perseverance.
Detecting is not very complicated and the rewards can be tremendous. The difference between success and fruitless toiling can be remedied by a few small adjustments and a whole lot of perseverance.
Ask the Experts—Where can I find plans for a home-built suction dredge?
May 2007
Q: Years ago I had plans for building a home-built suction dredge called the Spartan dredge. I really loved that dredge. I now have a 12-year-old son who wants to start mining. We wanted to build our own at home but I’ve lost the plans.
Q: Years ago I had plans for building a home-built suction dredge called the Spartan dredge. I really loved that dredge. I now have a 12-year-old son who wants to start mining. We wanted to build our own at home but I’ve lost the plans.
Silver’s Shine is Back
June 2007
As a precious metal, silver doesn’t have the allure of gold. As an investment, it’s not as hip as Google. But dowdy old silver is suddenly chic. Silver prices are at their highest in more than 25 years, and mining companies are riding an economic boom.
As a precious metal, silver doesn’t have the allure of gold. As an investment, it’s not as hip as Google. But dowdy old silver is suddenly chic. Silver prices are at their highest in more than 25 years, and mining companies are riding an economic boom.
Legislative and Regulatory Update
October 2000
• Bush probably could take back monuments. But would he?
• Oregon Group Needs Your Help
• Critical Habitat Proposed for California Red-legged Frog
• Bush probably could take back monuments. But would he?
• Oregon Group Needs Your Help
• Critical Habitat Proposed for California Red-legged Frog
Legislative Update
December 1999
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
Hunting Down Paystreaks
April 2018
When I teach people about finding gold, I often explain that it is helpful to think of any river or stream that carries gold as being something like a sluice box.
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