Ask The Experts

January 2016 by Chris Ralph

Mining for Gold and Sapphires in Montana

April 2014

Fascinated by the sapphires—and the gold that occured with them—he was soon buying parcels of property and setting up his own commercial-scale gravel processing plants.

Cyanide-Free Gold Separation

February 2011
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...

Tips for Detecting Nugget Patches

April 2015

Certainly many other successful nugget hunters have mentioned these methods; hopefully I can add to or clarify these methods.

The Basics of Crushing and Milling Operations

February 2011
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.

How to Melt Your Own Gold

March 2012
There are good and bad ways to melt gold. In this article, we’ll take a look at the right way to melt gold without losing any of the valuable metal.

The Fine Art of Panning Heavy Sands

October 2011
The fine art of panning heavy sands requires a measure of patience. If you enjoy panning gold, you ought to enjoy this too, once you get the hang of it.

Gold Recovery with Centrifugal Bowls

July 2014
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.

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