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 Alaska Highway and Beyond
My first clean-up showed that my efforts were not in vain. There was considerable color with some good-sized nuggets in the riffle trap.
Tucson Show Marketing
Normally we do not cover gem and mineral shows, but this one is a little different. The Tucson (Arizona) Gem and Mineral show is the sales source for so many small mining operations, I felt I had to address this show and its possibilities for the small miner.
12-Year-Old Unearths Large Diamond
It is the eighth largest brown diamond to be found and certified by park staff.
Dredging Backwards?
Before I tell you what dredging backwards is, I’ll tell you why my team and I decided to give this very unconventional dredging method a try.
The Black Diamond of the Forest
Hearty trees, shrubs and plants are a product of the soil conditions in which they grow, so it makes sense that roots near an ore deposit will take on nutrients containing metals if they are present.
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.
Following Clues to a Hidden Gold Deposit
Many years ago I was in the American Canyon. I remembered a few details about a placer deposit there, so we decided to make a trip down and re-check some of these old workings.
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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
