Ask The Experts
Ask The Experts: Sulfides and fluxes
July 2017 by Chris Ralph
The concentrate is just the heaviest of the heavy minerals but some sulfides are sneaking in there also with the gold...
Ask The Experts
How do I extract my gold from this ore?
Ask the Experts
Bismuth oxide for assaying?
Ask The Experts: Could you expand on your previous blasting article?
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?
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 - Looking for help smelting gold
Ask The Experts: Assay problem or recovery problem?
Q: I have tried various leaching techniques from which I cannot get a precipitate.
Ask the Experts
Q: Is there a special name for this silver and copper alloy?
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