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.
An example of some of this extraordinary ore was a lot of about four tons from the Florence mine during the last days of a lease that averaged over 300 ounces of gold per ton.
...the area around Eureka, Nevada is well mineralized and seems to have a bright potential for future production of all sorts of metals.
In the summer of 1854, John Selkirk, a discouraged placer miner who was down on his luck and ready to go back to Massachusetts, tied his mule up in a gulch north of what is now downtown Angel's Camp.
Polymetallic skarn deposits are an interesting class of deposits that can contain a number of different types of metals.
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.
In this review of precious and base metal deposits in Arizona, it is apparent that several significant mines and mineral deposits occur in eastern Arizona, and there is considerable potential for new discoveries.
Silver nuggets have been described as “ultra-rare,” “prized” and “unique.” Naturally occurring silver nuggets are rare enough to suggest caution when purchasing. Fakes have reportedly been produced and misrepresented for sale as genuine specimens.
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