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Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length


If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.

Hunting Down Paystreaks


When I teach people about finding gold, I often explain that it is helpful to think of any river or stream that carries gold as being something like a sluice box.

Alternative Gold Leaching Methods


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

Hunches, Choices and Guesses


When you approach a location, even if you've been there before, you should consider all the factors and conditions present at the site. This includes both natural and man-made factors.

The Fire Assay of Carbon


Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.

Regarding "Good Assays and Bad"


Last month I wrote an article entitled “Good Assays and Bad,” which gathered a few comments.

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.

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