Prospecting & Detecting
To Foam or Not to Foam
February 2020 by Harry Griffin
George was considering filling his dredge floats with closed-cell foam, ensuring that there would be no area available within each float for flooding.
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.
Alaskan Gold Adventure
In Chicken I had my first experience with the famous Alaska blue clay, sometimes called the blue layer. The blue layer is where the best fine gold was to be found.
Springtime Sampling In The High Desert
As the ground thaws and dries out and the warmth of spring starts to settle in, it’s time to start afresh with a new prospecting season.
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.
Using Google Earth and Other Maps
Last month, one of our readers requested an article regarding the possible use of Google Earth for prospecting research. It was a good idea, so here it is.
Gemstones to Die For
Some gems can potentially poison you, make you sterile and even make you forget who you are.
One Potato, Two Potato...
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
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The Bawl Mill
• Ask The Experts - Can you explain how caliche forms?
• Ask The Experts - How does gold form?
• Ask The Experts - Do you think it’s realistic for a detectorist to recover a couple of ounces per week if working full time?
• Ask The Experts - Can you suggest proper discrimination settings for my detector?
• Time to Stake Your Own Mining Claim
• A Day On The Yuba River
• Determining The Optimal Crushing Size for Gravity Recovery
• Gold Prospecting for Better or Worse: The Pains of Prospecting
• Following Man-Made Ditches to Recover More Gold
• Sixteen to One Gold Mine: Going Underground - Pt II
• All About Native Silver
• Internet Forum Gold
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
