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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...
Picks & Pans: The Discovery Gulch Diggings
June 2000
Cold, clear water flowed around my neck as I sat in a water hole on Discovery Gulch in Interior Alaska. I squinted up at the hot interior sun, as it seemed to be trying to mock me, frying me in it's 88 degree rays.

Prospectors Beat Mining Claim Tax
February 2007
Early in 2006, two prospectors, joint owners of unpermitted mining claims in San Bernardino County, California, were confronted by the County Tax Collector with stiff taxes amounting to hundreds of dollars for the “possessory right” to own mining claims in that county.
Early in 2006, two prospectors, joint owners of unpermitted mining claims in San Bernardino County, California, were confronted by the County Tax Collector with stiff taxes amounting to hundreds of dollars for the “possessory right” to own mining claims in that county.
Mining Stock Quotes and Mineral & Metal Prices
December 1999
Miners Welcome Comments by Alaska Official
December 2003
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
Mining Stock Quotes and Mineral & Metal Prices
September 2001
What Is Your Grade?
March 2021
After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?
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