A friend of one of my kids gave me a baggie containing about a half-
teaspoon of what he panned somewhere out west, reportedly gold dust.
Obviously this is not a great deal of gold (if any) but I am
reluctant to toss any gold. Is there any worthwhile way to extract
whatever is in there? I work with so little gold that I don’t really
have anything else to send for refining.
On that subject-- how much gold do I need to have for it to be
profitable to send to be refined? I’ve only ever sent silver.