Small Mining Operations
Gold Deposits of the Ivory Coast
April 2014 by Chris Ralph
Ivory Coast has considerable gold reserves, and this nation has the largest area of greenstone belts prospective for gold in the continent.Ask The Experts
How do I set up a Miller table?
Gold Deposits of Montana
Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.
The Basics of Crushing and Milling Operations
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
The Giant King Mine
Most gold-bearing veins in this region are controlled by fractures associated with the Melones Fault, a late Cretaceous structure that is 108 to 127 million years old.
A Test Grid Dredged for Gold Values
The evaluation must also consider the gold fineness or purity. The purity of the Sugardaddy nuggets is estimated at 850 fineness, meaning 85% is gold (Au), 12% is silver (Ag) with 3% being other gangue alloyed metal.
Proper Spacing of Placer Sample Sites
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
Bering Sea Gold—Part II
In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...
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The Bawl Mill
• Ask the Experts
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• 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
• Recovering Fine Gold with Oleophilic Adhesion
• Detecting for Gold in Nevada
• Using Structural Clues to Locate Buried Placer Channels
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
