Prospecting & Detecting
Prospecting Hard Rock
March 2014 by Don Robinson
We panned out maybe three gold pans of the material and we were shocked at the gold that was there. This rock appeared to be rich.
Additional articles that might interest you...
The Heavy Minerals in Your Concentrates
June 2016
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
Jim Madden's Gold
July 2016
Maybe we could find a few pieces of ore from that tunnel? It was worth a try. The old timers didn’t have that stamp mill for looks, so we set off to get some samples.
Maybe we could find a few pieces of ore from that tunnel? It was worth a try. The old timers didn’t have that stamp mill for looks, so we set off to get some samples.
Mud Men: Pocket Miners of Southwest Oregon—Part I
February 2011
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Rattler's Gold
January 2011
Rick donned a pair of fiberglass shin guards that he normally wore dredging, just in case he uncovered the rattlesnake during his digging and rock moving. I wasn’t convinced they were going to provide enough protection.
Rick donned a pair of fiberglass shin guards that he normally wore dredging, just in case he uncovered the rattlesnake during his digging and rock moving. I wasn’t convinced they were going to provide enough protection.
Our Readers Say
December 2011
• Re: Tyrie's Roadway Nugget
• Re: Are Permits Needed for Highbanking in California
• Re: Tyrie's Roadway Nugget
• Re: Are Permits Needed for Highbanking in California
A Good Start
July 2011
We split up in order to cover a larger area and found good color almost everywhere. The bedrock was shallow on both sides of the river, but the inside bend was where we concentrated our prospecting.
We split up in order to cover a larger area and found good color almost everywhere. The bedrock was shallow on both sides of the river, but the inside bend was where we concentrated our prospecting.
The Alaska Highway and Beyond
October 2013
My first clean-up showed that my efforts were not in vain. There was considerable color with some good-sized nuggets in the riffle trap.
My first clean-up showed that my efforts were not in vain. There was considerable color with some good-sized nuggets in the riffle trap.
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• Alaska: Large-Scale Mining Can Be Done Right
• Gold of the Iditarod Mining District, Alaska
• Bedrock
• Natural Gold Alloys
• Government Takes Land for Open Space
• Comments on Gold Rush and Bering Sea Gold Series
• Hidden Value in Old Tailings
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices







