History & Geology
Can You Recognize Valuable Ores?
August 2016 by Chris Ralph
The process of recognizing ores all starts with being able to recognize some basic minerals and knowing what hard rock ore looks like in the districts where you prospect.
Iron Ores and Iron Mining
For more than 40 years, iron ore prices have been decided by private negotiations conducted between the largest of the iron miners and the largest steel producers. These two sides dominate both the spot and contract iron ore markets.
Prospecting for Diamonds
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
California: The Land of Big Nuggets—Part I
The nugget sat there in plain sight, though it was covered in dirt, while hundreds of people had passed that way every day.
Gold and Rare Earth Elements in New Mexico
We import nearly all of our REEs from China, so it’s critical that we find and continue to develop domestic resources of these elements.
Sierra County Gold—Part II
...we will continue our examination of the rich streams and mining districts, and then take a look at some of the big nuggets that have been found here.
Exploration Rush at Tonopah, Nevada
A few months later, a young, greenhorn lawyer agreed to pay to have it assayed, and the quartz turned out to be rich in both gold and silver.
The Preacher of Sheeps**t Flats
It seemed that the preacher always gave the same answer to anyone who asked where his gold had come from. His answer was, “If you know your gold, you can find it. However, you will have to find it the hard way, the way I found it.”
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• Ask The Experts
• Revisiting the Rocker Box
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• The Highs and Lows of Drywashing
• Successful Detecting Requires Attention to Detail—Part I
• Panning for Gold on Canyon Creek
• China Closing More Than 1,000 Mines
• Habits, Procedure, and Where Is The Gold?
• Exploring A Historic Lode Mine
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