Prospecting & Detecting
Critical Minerals: Titanium—Part II
August 2018 by Chris Ralph
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.
Forty-Six Nuggets
This past summer, a two-week adventure in Alaska and other gold prospecting trips turned out to be some of my greatest life experiences.
My Lucky Thirteen Nuggets
Even with my favorite top-of-the-line gold detector there were several false digs. Many of the hot rocks gave a solid signal that was too much like a nugget to ignore. After trying several tests I just dug everything because it is better to be safe than leave a big, deep nugget for a more diligent gold hunter.
Detecting: Small Creek Yields Good Gold
Most of our gold recoveries have been in the cracks of the bedrock. Hot rocks in the form of dikes cross the creek at various locations, causing us to skip those areas.
An Interview with Minelab Engineer Mark Lawrie
The design of metal detectors well-suited for prospecting is an interesting process and not necessarily an easy one to achieve. It is a combination that blends the desires of what prospectors would like, the requirements of sales people and dealers, with the science and physics of what the electronics can achieve.
Creating Your Own Luck
Now that you are actually going to be out there doing some prospecting, I may be able to help.
Guinea Africa: Gold, Ebola, and A Monkey Barbecue
Doubters be informed, yes, there is gold in Africa—lots of gold—and all the good and bad that comes with it.
Mud Men: Pocket Miners of Southwest Oregon Part II
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?
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