All Articles
The Trapiches of Chile
October 2000 by Dr. Ralph E. Pray
In Chile, the trapiche (tra-peach-ee) method of milling gold ore began more than 400 years ago. The first trapiche, also known as a Chilean mill, was a stone wheel weighing two or three tons rotating on an axle.Additional articles that might interest you...
Successful Rally for Suction Dredge Miners in Idaho
August 2014
Representative Paul Shepherd stopped by, and Idaho County Commissioner Jim Chmelik dove with one of the dredgers so he could see for himself that no harm was being done to fish or their habitat.
Representative Paul Shepherd stopped by, and Idaho County Commissioner Jim Chmelik dove with one of the dredgers so he could see for himself that no harm was being done to fish or their habitat.
Get The Lead Out!
December 2014
If you do the math, it equates to about $1,500 of heavy metal value per three-hour dive. This is good wages, and you are doing a service to the environment by removing this toxic metal.
If you do the math, it equates to about $1,500 of heavy metal value per three-hour dive. This is good wages, and you are doing a service to the environment by removing this toxic metal.
All About Quartz—Part II
July 2013
In our May 2013 issue, we took a look at the mineral quartz, a mineral very commonly associated with gold. However, gold is not the only reason prospectors are interested in quartz. Quartz can also be very valuable as a gemstone
In our May 2013 issue, we took a look at the mineral quartz, a mineral very commonly associated with gold. However, gold is not the only reason prospectors are interested in quartz. Quartz can also be very valuable as a gemstone
Ask the Experts
December 2013
Market for scheelite concentrates?
Market for scheelite concentrates?
Mine Market / Circulation Manager Returns to High School
July 2000
Over the past 4 years many of our readers, advertisers, and newsstand vendors have had the pleasure of talking with Matt Koumaras...
Over the past 4 years many of our readers, advertisers, and newsstand vendors have had the pleasure of talking with Matt Koumaras...
Ask the Experts—How did the bill to address RS 2477 pan out?
April 2007
Q: In the November 2006 issue, you published an article “Bill to address RS 2477” regarding rights-of-way across public lands (HR 6298, introduced by Representative Steven Pearce of New Mexico). Will you please provide me with some information about how this panned out?
Q: In the November 2006 issue, you published an article “Bill to address RS 2477” regarding rights-of-way across public lands (HR 6298, introduced by Representative Steven Pearce of New Mexico). Will you please provide me with some information about how this panned out?
Newmont Steps Up For Laid Off Workers
October 2008
Newmont Mining Corp. covered the final uncashed paychecks of workers who were laid off in August from the Jerritt Canyon Mine by another mining outfit.
Newmont Mining Corp. covered the final uncashed paychecks of workers who were laid off in August from the Jerritt Canyon Mine by another mining outfit.
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The Bawl Mill
• A Word from the Editor
• Under the Guise of Environmental Protection—EPA Revealed
• The Centennial Lode and the Centennial Ridge District, Wyoming
• Company Notes
• Picks & Pans—In Search of Nome Creek Gold
• Massive Sulfide Deposits in Oregon
• Recreational Dredging on the South Yuba River
• Tales of Liberty Gold
• Drywashing Alluvial Placers
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
