The Goldfield Mining District, Nevada—Part II

July 2017 by Chris Ralph

The majority of the gold produced in Goldfield has come from ores that are close enough to the surface to be oxidized by the air. This oxidized ore is normally a soft, shattered, earthy material usually stained yellow to brown by oxides of iron.

Natural Gold Alloys

March 2014
Natural gold is never 100% pure; all natural nuggets contain at least some impurities. We're going to take a look at just what some of those impurities might be.

Glaciers and Placer Gold Deposits

November 2016
It also happens sometimes that glaciers will bury valuable placer deposits. This occurs when the glacier goes over the top of an existing placer deposit.

Exploring A Historic Lode Mine

August 2016
Climbing up the debris, I pointed my flashlight up a shaft ascending straight up as far as my light would shine. It was the stope of the pay shoot leading to the old tunnel above!

Copper Deposits of Alaska

February 2014
Only the famous Kennecott copper mine was able to continue operating through the Depression owing to the exceptional richness of its ore.

Alaska: Kodiak Islands Mineral Resources

March 2016

The fresh material is worked and concentrated by the waves on the flat, wide beach platform. The waves wash away the lighter minerals, leaving the heavies near the bluffs and in depressions on the beach.

Weathering, Erosion and Placers

April 2017
The big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.

Why Haven't They Mined This Claim?

May 2011
Improvements in mining equipment and techniques, along with a higher gold price, make many mining properties profitable today that may not have been in the past.

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