How To
Operation And Application Of Magnetometers
October 2014 by Chris Ralph
The technology used in these devices has advanced greatly in the last century. Many different types of physical effects are used to measure these magnetic fields and we will briefly look at some of these.
How to Rebuild a Rock Drill
August 2023A New Method for Handling Stubborn Gravity Middlings
The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.
Sampling for Success—Part II
The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.
Iron Minerals, Your Detector and Gold
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.
Proper Placer Sample Processing
...your sampling procedures should not be designed to catch gold your mining technique will never recover.
The Bucking Room
Since this position was the least desirable due to the hard physical labor, the bucking room was used as punishment. Do you have a mediocre worker? Bad attitude? Off to the bucking room!
What To Look For—And Look Out For—In A Placer Mineral Report
Buying a placer claim or investing in a placer mining property comes with plenty of financial risks. You need as much information as possible about the mineral deposit in order to minimize those risks.
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The Bawl Mill
• Ask the Experts
• Ask the Experts
• Ask the Experts
• Ganes Creek After The Flood
• A Trip to Morgan-Monroe State Forest of Indiana
• The Pedro Gold Dredge
• Detecting Alone -- What to Look For
• Over the Divide: John A. Miscovich
• What Equipment Do I Need?
• Why Did This Silver Mine Close?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
Legislative and Regulatory Update
• Wake Up Voters! Oregon SB 838 Study Group Update
