History & Geology
Kennecott Copper Mine, Kennecott, Alaska
October 2017 by Jack Geck
For approximately 30 years, the mines produced good ore, some so rich it was simply sent straight to bagging, bypassing milling and loaded directly on the rail cars.
All About Pyrite
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
Picks & Pans: Gold Recovery in Placer Mining Operations
Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.
The Rush to Treasure Hill
There were some exceptional times in the far-flung history of the West. Rich finds of minerals that set men’s souls ablaze. From the rich gold fields of California, men who arrived too late to find riches went searching in every direction. The trail that we will follow leads east, past the shining silver district of the Comstock Lode.
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Critical Metals: Lithium
Prospecting for lithium deposits can take a number of different directions, because this metal can be extracted from a variety of geologically differnet sources.
Indicator Minerals for Gold & Silver
In this article, we’re going to take a look at the minerals that contain gold and silver, and how you as a prospector can identify them in the field.
Enrichment of Mineral Deposits by Weathering—Part I
The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.
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The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - Where should I get my geology degree?
• Ask The Experts - How much rock shall I crush to determine the value?
• Placers Directly Associated with Lode Deposits
• Is It Time for a Change? New Ways to Find More Gold
• MMAC Update
• Silverton's Gold
• Procuring Mine Owner Permission at a Mine Site
• Champions Crowned at the California State Gold Panning Championships
• Drywashing for Fine Gold
• ICMJ Gold Prospecting and Mining Summit Postponed
• High Prices for Gold, Silver & Copper: What Does it Mean for Prospectors?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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