History & Geology
Ask The Experts
July 2015 by Chris Ralph
Q: Is there a correlation between fault zones and mineralization of economic metals?What Are Those Rocks In My Pan?
The placer mineral identification key is designed to answer this question. It attempts to recognize all the minerals in your gold pan concentrates.
The Silver, Gold and Gemstones of Candelaria, Nevada
The Candelaria area is of interest to prospectors not just for silver, gold and other metals, but also for the beautiful gemstones found there.
Critical Minerals: Titanium—Part II
There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.
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.
Indicator Minerals for Gold & Silver
In this article, we’re going to take a look at the minerals that contain gold and silver, and how you as a prospector can identify them in the field.
The Pearce Mineralized Area, Dragoon Mountains, Arizona—Part II
There are many prospects within the known mineralized area and along the margins of the mineralized area that should be examined for gold and silver.
Las Médulas—The Gem of the Roman Gold Mines
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
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The Bawl Mill
• Ask The Experts
• Trail to Treasure
• The Smell of Gold -- Part II
• Hard Rock University: Expensive Hobby or Real Business?
• The Reason We Fight
• My Great Nevada Adventure
• Prospecting for Pegmatites
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
