Ask The Experts
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...
Ask The Experts—Amalgamation
Q: Exactly how does amalgamation work? Does it “melt” the gold (or copper, or silver, etc.) and form an alloy? If one leaves a piece of gold in mercury, will the entire sample become an amalgam (combination) of gold and mercury? Or does it only affect the surface...
Ask The Experts: What to do with scheelite
Q: What can be done with scheelite? Why does the ICMJ never list tungsten in the metals prices?
Ask the Experts
Gold and silver in Pennsylvania
Ask The Experts: Equipment to break up heavy clay
Q: I am looking for a “trommel machine” that doesn’t separate anything but clay slurry from rock hard clay.
Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum?
What minerals are magnetic? I have heard that super magnets (rare earth magnets) can capture platinum. True?
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The Bawl Mill
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