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.
Nevada's Lithium Boom
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
$50 Million in Gold From 1857 Shipwreck Approved for Sale
The gold is all for sale. Just one tiny coin alone could go for $1 million because of its combination of rarity and the history behind it...
Critical Minerals: Tungsten
Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.
Downieville: Another Gold Rush Favorite
I didn’t know what to expect because the area we were working was not close to the water, but we were pleasantly surprised when we began to pan out some nice flakes and a few pickers.
Critical Metals: Copper
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
Mineralized Faults and Contacts in the Search for Gold
Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.The Tombstone Silver-Lead District, Arizona
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
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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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