Ask The Experts: Equipment to break up heavy clay

January 2017 by Chris Ralph

Q: I am looking for a “trommel machine” that doesn’t separate anything but clay slurry from rock hard clay.

Volume is the Key to Success

June 2017

While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.

Care and Lubrication of a Model 13 Laboratory Wilfley Table

June 2016
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size.  For this reason, I took a good look at each of the samples.

Fine Gold Panning Without Using Mercury

March 2012
The technique I will describe is a much safer alternative and it works. It’s a fine-gold panning technique that eliminates the need for mercury amalgamation of most placer samples.

Ask the Experts

March 2014
Breaking cemented gravels

Iron Minerals, Your Detector and Gold

January 2013
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.

Alternative Gold Leaching Methods

January 2014
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.

Ask The Experts

January 2016
Viewing details on Google Earth

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