Ask The Experts
Ask the Experts
March 2014 by Chris Ralph
Gold out of auqa regiaAsk The Experts: Is this BLM demand legitimate?
Q: The Arizona BLM state office has started sending out registered letters to association placer claim holders...
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• Should I introduce mercury in the centrifugal bowl to aid gold recovery?
Ask The Experts—Studies with summaries and conclusions please...
Q: ...A number of scientific studies have been done that concluded our level of dredging is “not” harmful to fish or habitat. I suggest that the Mining Journal list some of these specific studies with brief summaries and conclusions.
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Breaking cemented gravels
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