Bering Sea Gold—Part II

May 2012 by Jim Halloran

In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...

Designing and Evaluating Placer Gold Recovery Plants

September 2014
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...

Ask the Experts

August 2014
Centrifugal bowls versus jigs

Wyoming's Billion Dollar Nugget—The Trilogy Ends

June 2011
The next hurdle to jump was whether the trommel motor would start again after sitting on the desert for six years without being started. The last time it had taken a three foot pipe wrench to bust it loose.

A Model Mining Operation

August 2014
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.

Small-Scale Concentrating and Recovery Methods

April 2011
The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.

Small-Scale Processing of Hard Rock Ores

December 2014
Depending on the ore and if significant sulfides are present, a hard rock miner may be able to get away with simply using a flux to digest the other minerals that may be present.

Ask The Experts

March 2016
How do I set up a Miller table?

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