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.

Eolian Placer Gold

February 2012
I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.

Follow the Line

February 2018

Four nuggets, ranging from one to four pennyweight, had been found originally. All four nuggets were found in a line about ten feet apart from each other.

Northwestern Alaska Mineral Resources

February 2016
Gold and jade are actually only minor mineral resources for the Northwestern Alaska region as a whole. Modern prospecting has focused more on base metal than precious metal resources.

Search Coils and Techniques

May 2014
This article is intended to try to help someone who is breaking into gold detecting and using a pulse induction (PI) detector.

Ask the Experts

September 2014
• Using drywashers to work desert gravels

How to Beat the Heat--and The Bedrock

October 2018

The pit was a classic one—exposed shale bedrock with all the material being washed out one end of the pit. Within a few minutes I had a nice mellow signal that was in open ground.

Detectors: Past, Present and Future

June 2016
Detectors were invented long before I was born, but it was in the 1960s when they started to become an item popular enough to power a fledgling industry. The key development was miniature transistor technology replacing the old fashioned tube technology of the 1950s, making lightweight, affordable detectors possible.

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