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Identifying the Noble Metals Simple Tests That Work
May 2006 by Charles L. Butler
Using a porcelain evaporating dish, place concentrates or head ore, equal to a tablespoon, in 60cc of aqua regia. Boil almost to dry, then add 10cc HCl (hydrochloric or muratic acid) and heat for a few minutes, and then add 30cc of water and bring to boil. Let cool while the solids are being allowed to settle. Using a pipette...Additional articles that might interest you...
Ask The Experts - How do I work this glacial deposit?
November 2017
Prospecting for Meteorites with a Metal Detector
February 2002
The following article has been written with a two-fold purpose; first, to help familiarize anyone interested in “meteorite shooting,” and second, to stress the importance of scientific research.
The following article has been written with a two-fold purpose; first, to help familiarize anyone interested in “meteorite shooting,” and second, to stress the importance of scientific research.
Mining Stock Quotes and Mineral & Metal Prices
February 2004
Finding Art in the Desert
July 2023ICMJ Visits Downieville, California
January 2023The Winning Hand
January 2017
The operation and techniques employed are highly successful in producing free gold with minimal work involved while maintaining an environment protection process through the use of recycled water and a settling pond.
The operation and techniques employed are highly successful in producing free gold with minimal work involved while maintaining an environment protection process through the use of recycled water and a settling pond.
A Gold Mine on a Washington Beach?
February 2012
Bela and Barbara Kovacs began prospecting for gold about seven years ago as a family orientated outdoors activity. A welder by trade and lured by the simple fact that beach sands can contain small bits of precious metals, Bela decided a few years ago to build a sand sucking contraption that can sift the shoreline for anything worth keeping.
Bela and Barbara Kovacs began prospecting for gold about seven years ago as a family orientated outdoors activity. A welder by trade and lured by the simple fact that beach sands can contain small bits of precious metals, Bela decided a few years ago to build a sand sucking contraption that can sift the shoreline for anything worth keeping.
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