Ask The Experts
Ask The Experts - I need help with more in-depth mining research
September 2017 by Chris Ralph
Which Specific Gravity Test Works Best?
Have you ever wondered how accurate specific gravity tests are in determining the amount of gold in a specimen?
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• How small should I crush my hard rock ore?
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Q: Can you please tell me about diamond fluorescense?
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Q: Where is the best place to prospect for gold in Minnesota?
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?
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Q: Graphite spray to prevent sticking when using cast iron molds
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