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December 2012 by Chris Ralph
What is the best type of mat to use in a high banker set up?Tips and Tricks: Preparing Your Dredge Engine for Storage
From this I inferred that engine 2 had a carburetor problem. In this article, I discuss the specific engine/carburetor problem, and the surprising solution to this problem.
The Heavy Minerals in Your Concentrates
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.
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Bismuth oxide for assaying?
How to Refine Silver—Pt II
Silver recovery from low-level solutions is frequently done in a cell that has a cathode with 2 to 5 or more times the surface area as the anode.
Sampling, Hydro-Shocking & Cleaning Quartz-Gold Specimens
Many specimens have a small amount of gold and are not pretty to look at. There is a nifty way to give them a makeover and make them much prettier than they were when you found them.
Wilfley Tables—Repair, Rebuild & Set Up
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
Hard Rock 101: Mechanical Techniques
Since we know that the secret to breaking rock is applying force from the inside out (putting tension on the rock), we will be looking at ways we can generate force using human and machine power.
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• Detecting at the Sixteen to One Mine
