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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

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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

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