All Articles
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.Feds Release Opinion on Planned Mine Under Montana Wilderness
A proposed silver and copper mine that would burrow under a wilderness area in northwestern Montana will not affect bull trout, nor will it harm grizzly bears so long as some additional precautions are taken, federal wildlife authorities said.
Gold In The Midwest—Part II: Illinois, Indiana, and Ohio
In this article, I am going to take a look at three Midwest states and go through some of the prime places for prospectors to find nice local gold there.
The Lucky Shot Mine
I hobbled around on the broken up, sorted rock pile. Watching where I stepped, I kept my eye open for quartz with a gray-blue color imbedded throughout the samples I picked up.
Cal-Gold Closes Shop After 30 Years
“It is with great sadness that after more than 30 years in business in Pasedena, Cal-Gold will close its doors,”
What Is Your Grade?
After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?
Why So Much Gold in Nevada?
Nevada produces about 75% of all the gold mined in the US. This means that all the other 49 states combined only produce 25%, and this includes California, Alaska and Arizona.
Eolian Gold Deposits

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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