Ask The Experts: Nickel assays
March 2017 by Chris Ralph
Q: Our group has found a nickel deposit in the Yuma, Arizona area that is similar to the one that you wrote about...
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.
Q: Could you write more about the last two methods that you mentioned—the expanding chemical mixtures and the micro blasters, how and when to use them, and when not to use them?
Q: Can you offer any information on proper mining claim procedures?
Centrifugal bowls versus jigs
If it's gold, how should I clean it?
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