All Articles
How PGMs Affect Assay Beads
September 2001 by Charles L. Butler
Most fire assayers are trained to observe the cupelled beads very carefully, noting any discoloring or surface roughness that might indicate that one or more of the platinum group metals (PGMs) are present. The “clues and tests” I have included in this article stem from several sources, including my 35 years of experience performing torch assays...California State Gold Panning Championships September 1-2, 2007
Ready, Set, Go! The stopwatch clicks on and the panner starts like being fired out of a cannon. It’s the Labor Day weekend and the State Championships are on their way.
Finding Gold With Copper and Turquoise
The signs of copper, which the prospector most commonly sees in the field in outcrops and on the surface, are secondary minerals caused by the action of air and water on the original copper-bearing sulfides that were deposited deep...
Ask The Experts—Should I choose gold, silver or mining stocks?
Q: Have you guys published any articles on investing? How do I decide where to put my money? Should I choose gold, silver or stocks?
Ask the Experts
Q: A few questions about claim markers, gold hunter test kits, and videos....
Old Mine Sites and New Technology
We’ve had two trips to the deserts of Nevada and explored mines and mill sites, hiked miles of ravines in California, and swung our detector coils over thousands of square yards of bedrock.
Cliven Bundy vs. BLM
...was all this about grazing fees and the desert tortoise, or something more?
Picks & Pans: Prospecting at Mills Creek, Alaska
I particularly enjoyed this little expedition. It is always nice to get out and spend time with my father, Bud Herschbach. He has taken a liking to Mills Creek and was anxious to return and look for more nuggets.
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The Bawl Mill
• A True Endangered Species
• Guest Editorial—Vertical Disintegration
• USGS Reports Increase of Imported Minerals
• The San Juan Mountains, Colorado
• A Silver Opportunity
• Gold in Virginia
• Picks & Pans: DEF Prospectors Rally Was a Huge Success
• News From GATA
• Our Nugget Shooting Adventure
• Fly Fishing the Mine Tailings/Headwaters of the Clark Fork, Montana
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
