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Prospecting & Detecting

Prospecting for Diamonds in Kimberlite

Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.

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PLP Update: How to Restore The Rights of Suction Dredge Miners


A two-pronged approach is necessary to restore suction dredging; federal preemption needs to be established as addressed above via petition; and clarification from the EPA is needed to establish that no Section 402 permit is necessary when there is no “addition” of a pollutant.

Tracing Gold To Its Source


In this article I am going to talk about the different sources of gold and the clues a prospector can follow to find the source.

What Happened to The Gold Prospecting and Mining Summit?


We continue to seek out a patented mining property with an owner who is willing to host such an event with a water supply and enough remaining gold to make it worthwhile for the students.

Mud Men: Pocket Miners of Southwest Oregon—Part I


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...

Mutiny on The Mason


We decided to check some spots that were pretty good to us on previous trips. The detector was deceptively simple with few buttons and auto-ground balance.

Detecting at the Sixteen to One Mine


A while back I was given a very special opportunity to take my metal detector to one of the most famous gold mines in all of California, the Original Sixteen to One mine in Alleghany.

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.

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