Prospecting & Detecting
'Outer Space' Diamond Headed for Auction
February 2022 by Associated Press
Black diamonds, also known as carbonado, are extremely rare, and are found naturally only in Brazil and Central Africa. The cosmic origin theory is based on their carbon isotopes and high hydrogen content.
Gold Prospecting for Better or Worse: When a Gold Prospector Goes to a Diamond Mine
As a gold prospector for the past ten years, I thought that I had a fair understanding of the steps necessary to find gemstones.
Autumn Gold
November 2023" I went on a detecting trip in Northern California a few weeks ago. I called several friends to see who wanted to meet up with me. With an undeniable crispness in the air, I left Redding and started my drive to the goldfields."
Excavator Testing Wet Placer Ground
The excavator or backhoe has become the tool of choice for testing placer ground. These machines are the best way to explore and sample a placer deposit if the ground is not too wet or frozen and bedrock is not beyond the reach of the machine.
Beach Mining for Placer Gold
What I saw was a beach area that was just completely covered in black sand. Rubbing my hands close together like a kid in a candy store, I could not wait to get set up.
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.
Which Coil Should I Use?
Selecting the wrong coil can potentially cause you to miss nuggets, so you want to be sure to select the best option for the situation at hand.
Desert Prospecting Yields More Than Just Gold
This wash was not far from where I once dug a half-ounce nugget, so I knew there was gold in the area.
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