How To
Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals?
September 2016 by Chris Ralph
Q: Aside from the softness scratch test and other methods of identification, what feedback would you have on identifying gold in hard rock that may be mixed with other metals that affect its color?
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Explosives used correctly will save you both time and money being one of the best and most productive tools you can use.
Enrichment of Mineral Deposits by Weathering—Part I
The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.Pumping Water With Solar Power
Solar energy can be used for any size placer or hard rock mining operation. It is most practical for small and longer-term operations provided your mine is not located in a dense forest.
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Critical minerals are products that the government has designated as critical to our national interest because of both their potential military and industrial applications.
Volume is the Key to Success
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.
Breaking Rock the Old School Way
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
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