Prospecting & Detecting
Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
June 2014 by Greg Mast
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
The Forms of Crystalline Gold
The largest and most perfect single gold crystals are nearly always in the form of octahedra. These large octahedral crystals often possess deeply recessed faces.
Are You Being Followed?
These “people”—and I use that term loosely—worked together with others. What was happening to me was like scenes out of the old James Bond movies.
Mud Men: Pocket Miners of Southwest Oregon—Part I
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
More Indicators And Tips
December 2023Q&A With Detector Designer Dave Johnson
...it’s been a little known secret that one man was involved in designing many of the most respected very low frequency (VLF) nugget detectors on the market. Dave Johnson has designed gold-oriented detectors for Tesoro, Whites, Fisher and others for more than 25 years.
A Successful Trip Through Gold Basin
This time we took the detectors. Roger had worked that spot very well and wanted to see if my new detector would uncover any gold he might have missed.
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The Bawl Mill
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• Finding Gold with a VLF Detector—Part III
• Silver and Base Metal Deposits of the Pioche District
• California Dredgers: A Step Closer to Getting Back in the Water
• Arizona's Youngest...and Oldest Prospector
• Exploring Placers with Auger Drills
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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Legislative and Regulatory Update
• A Few Methods for Sampling Hardrock Deposits
• Protecting Our Access to Public Lands
