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Fire Agate in Arizona
June 2002 by Edgar B. Heylmun, PhD
Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.Mining Boom May Be In Store For Upper Michigan
While digging a well six years ago, the owner of a backwoods camp near the Michigan-Wisconsin line cut into sparkling rock. He showed a sample to a geologist friend, who realized it was laced with zinc.
High Sulfidation Epithermal Deposits
They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.
Utah's Crescent Creek Placers
The Crescent Creek placers are considered to be one of Utah's few commercial grade placers, but they are marginal and difficult to work at a profit.
A Few Methods for Sampling Hardrock Deposits
With a little homework and a methodical approach to sampling, a prospector can determine if a deposit is worthy of more of an investment...
Rare Earth Deposit May Be Awaiting Discovery
Bill and the geologist lost interest and as far as I know, nothing more was done to locate the deposit.
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Over the Divide
Dr. Ralph E. Pray
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The Bawl Mill
• ICMJ Elected Prospecting Magazine of 2002
• Mining Investment—Or Fraud?
• Gold in Suriname
• Golden Age of Gold Dredges
• Prospecting With Limited Equipment
• Looking Back
• Beryllium in Utah
• Company Notes
• Picks & Pans: The Gold of "Eldorado Canyon"—Mariposa County, California
• The Canton Lead
• NAS Agrees to Review Superfund Science
• Tight Budgets Force Forest Service to Cut Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
