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History & Geology

The Pearce Mineralized Area, Dragoon Mountains, Arizona

...I would bet considerably more lode gold and silver remains to be found in this area, and there are possibilities for small placers and nugget shooting.

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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.

The Mysterious Telluride Minerals


…let’s dive in and take a closer look at these rich gold and silver-bearing minerals to find out what they are, where they form, and how to identify them.

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.

All About Garnets


I get a lot of questions from prospectors about garnets, their value and what they tell us about the geology of some types of mineral deposits. So I thought it would be a good idea to take a closer look at the lowly garnet and learn a bit more about it.

Historic Dredge Uncovered in North Carolina


The Robinson is a wooden bucket-line dredge that was built in the early 1900s in New York and shipped in pieces to Nash County in North Carolina by train for reassembly.

Simple Rules of Gold Geology: Comparing Epithermal and Mesothermal Deposits


Geology is a science of general tendencies with frequent exceptions, not one of hard and fast rules that are always true and never vary. For almost every well-accepted rule of gold deposits, I can point you to a number of important exceptions.

Butte, Montana—The Richest Hill on Earth


I recently had the opportunity to spend a day exploring around Butte, Montana and was amazed by the amount of mining that has taken place there. The old-timers called Butte “the richest hill on earth” and had pretty good reasons for doing so.

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