Recovering Fine Gold with Oleophilic Adhesion
April 2014 by Alex DolbeareOleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
As I have always done, I stashed those heavy black rocks in my pack and put them in the garden at home. They never were given a second thought until a half decade later…
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.
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
The type of mine dump that is best for metal detecting are the ones that consist of mixed sizes of rock and are located near some sort of excavation, commonly a shaft or adit. Sometimes the piles located along a trench dug by the miners can be productive as well.
Over the years that I have been detecting for gold I have had many of the same questions come up. I decided to write this article to hopefully answer some questions that a person wishing to detect for gold may have.
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
We decided to check some spots that were pretty good to us on previous trips. The detector was deceptively simple with few buttons and auto-ground balance.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Mining for Gold and Sapphires in Montana • Contrary to Rumors, Couple Will Keep the Saddle Ridge Hoard • Finding Gold with a VLF Detector—Part I • Creating Your Own Luck • Over the Divide—Robert Michael “Mike” Corbley • Continuing Hard Rock Exploration • Detecting for Gold in Nevada • Using Structural Clues to Locate Buried Placer Channels • Gold Deposits of the Ivory Coast • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices