A few of the phrases that derive from prospecting.
"See how it all pans out" - meaning, of course, that until you've done the work you won't know the result. Don't anticipate.
"Flash in the Pan" - From the web: "a thing or person whose sudden but brief success is not repeated or repeatable."
"All the glitters (glisters) is not gold "- Many sources, self explanatory, many things that appear valuable aren't.
"Good as gold" - used to describe something of value.
"The Acid Test" - I didn't know this. Apparently it derives from the early gold rushes to testing if gold was real by dissolving in a mixture of hydrochloric and nitric acid. If it dissolved, it was real.
"Working the Hole..." I've heard this one a bit in various prospecting videos. I know, I know, I'm not going to elaborate...