Ask The Experts
Ask the Experts
January 2015 by Chris Ralph
• Should I introduce mercury in the centrifugal bowl to aid gold recovery?Ask the Experts - processing plants that can extract rare earth metals
Q: Do you know of any processing plants that can extract rare earth metals?
Ask The Experts
• Is there a standard contract for placer mining to use with a private property owner?
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• Can I find enough gold to make a living with only hand tools?
Ask the Experts - proper mining claim procedures
Q: Can you offer any information on proper mining claim procedures?
Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals?
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?
Ask The Experts—Using classifiers
Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.
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