Prospecting & Detecting
Roads to Nowhere
November 2018 by R. V. Larson
What today appears to be a “road to nowhere” was once a road to somewhere. At today’s precious metal prices that somewhere can be of great importance to you.
To Foam or Not to Foam
George was considering filling his dredge floats with closed-cell foam, ensuring that there would be no area available within each float for flooding.
Attention to Detail - Part II
Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.
Prospecting for Diamonds in Kimberlite
Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.
Fine Gold Panning Without Using Mercury
The technique I will describe is a much safer alternative and it works. It’s a fine-gold panning technique that eliminates the need for mercury amalgamation of most placer samples.
Prospecting Knowledge -- Pass It On!
I had two of the guys go down into the creek and each one picked out a small island of bedrock. I had them detect their piece of bedrock and then gave a critique to all on how they did.
Proper Assaying of Placer Samples
The whole purpose of sampling mineralized ground is to measure the values in a small volume of material that would be representative of a much larger volume of similar material. The key word is representative. Chemical and fire assaying will not accurately represent placer deposits by themselves.
The “Push” for Gold—The Great Nevada Adventure Continues
I got a signal but knew it was small. Still, I was very happy to find something. I continued and got another signal. Yes! A bigger nugget! Then I got another signal.
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