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Gem Discoveries Sought in North Carolina Field
February 2001 by Associated Press
The gem miner who uncovered North America’s largest emerald thinks he’s found a mother-lode of emerald-rich rock in Alexander County.VMS Deposits in Central Arizona
Volcanogenic Massive Sulfide (VMS) deposits in the Central Arizona Precambrian volcanic belt occur within a felsic package of volcanic rocks capped by an exhalite unit comprised of cherts, iron formations and siliceous members.
The Fire Assay of Carbon
Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
Detectors: Past, Present and Future
Detectors were invented long before I was born, but it was in the 1960s when they started to become an item popular enough to power a fledgling industry. The key development was miniature transistor technology replacing the old fashioned tube technology of the 1950s, making lightweight, affordable detectors possible.
Spanish Silver in Arizona
When Spaniards entered what is now Arizona, they encountered diggings made by Opata Indians. The Opata Indians, who now live and mine in the northeastern part of the state of Sonora, Mexico, were one of the few Indian tribes that was...
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The Bawl Mill
• Our Readers Say
• The King Has No Clothes
• GATA Update
• Clean Fuel, Cleaner Air
• Gold Miners Become Tungsten Miners
• Mining Deaths Drop Overall in 2000
• History of Oil in California
• VCIs for Environmentally Safe Maintenance
• Picks & Pans: Dredging on the Arkansas
• Placer Gold in Washington
• Alaska Miners to Sue Department of Interior
• Oregon's Measure 7 May Provide Compensation for Land-Use Restrictions
• Company Notes
• Environment-Friendly Dredging
• Legacy of the Wandering Jew Mine
• Babbitt Wants Moratorium in Siskiyou National Forest
• Greaterville, Arizona
• Identifying Gold Ores
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
