How To
Ask the Experts
November 2012 by Chris Ralph
How do I set up a small placer operation?Ask the Experts
Breaking cemented gravels
Small-Scale Hard Rock Production
So far this year we have recovered over three pounds of gold and the hard rock veins seem to go on forever. We now have three claims that can produce good enough gold to set up a productive operation.
How to Interpret Assay Values
This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.
Operation And Application Of Magnetometers
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.
Ask The Experts
• Determining the amount of gold in a specimen
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.
Finding Gold with a VLF Detector—Part II
It is this ability to hear and respond to the faintest of audio signals that I believe separates the best nugget hunters from everyone else.
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The Bawl Mill
• Ask the Experts
• Ask the Experts
• Ask the Experts
• The Portable XRF Gun
• Gold Dredging on Oregon's South Umpqua
• The Struggle to Reopen Alaska's Largest Gold Mine
• Prospecting With a Detector: Lessons Learned
• The Rush to Treasure Hill
• Tips on Crevicing for Gold
• Using Google Earth and Other Maps
• Proper Assaying of Placer Samples
• Mining, Health Care & Taxes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
