History & Geology
Jadeite in California
April 2015 by Bill Rich
...two jadeite locations in California have been thoroughly researched by geologists. There are no doubt others that lie in wait.
Testing Ores for Free Gold
I get a number of questions from people about testing and treating hard rock ores. The simplest way, but also an expensive one, is to just have an assay test done by an independent assay firm. As an alternative...
Mass Wasting & Gold Deposits
Not all of these slides and debris flows will produce results, but if you search for these while prospecting in your gold producing areas, then you can increase your odds of finding new gold.
The Significance of Nuggets in Placers
Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.
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.
Diary of a Diamond Prospector
I couldn’t wait to get started. With no field budget, an assay budget of $100/year, a 1975-Ford Bronco that was a road hazard, a gas card, a topo map and full support of the director, I headed to the State Line district near Tie Siding along US Highway 287 to begin mapping kimberlite.
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.
The Gold, Silver and Base Metal Mines of Eureka, Nevada
...the area around Eureka, Nevada is well mineralized and seems to have a bright potential for future production of all sorts of metals.
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The Bawl Mill
• Our Readers Say
• Ask The Experts
• Ask The Experts
• Exploring Snakehead
• One of the Richest Beaches Ever Mined
• Prospecting for Gold in Baja California
• What's All This Talk About Mining Districts?
• The Power of Mining Districts
• What is a Mining Right?
• The Gold, Silver and Base Metal Mines of Eureka, Nevada
• Tips for Detecting Nugget Patches
• Mining Stock Quotes and Mineral & Metal Prices
• State Lends Help to County in Nevada Road Fight
• Melman on Gold & Silver
• Utah Approves funds to Fight Feds
