Prospecting & Detecting
Search Coils and Techniques
May 2014 by Ray Mills
This article is intended to try to help someone who is breaking into gold detecting and using a pulse induction (PI) detector.
How Rich Must My Ore Be?
How rich does a hard rock ore have to be for it to be worthwhile to process and extract the gold?
Placer Gold Deposits of New Mexico
While a large number of locations have yielded some placer gold, most of the state’s placer production has come from a few productive districts.
When What You Are Told Becomes Information
The Subsurface Suction Dredge
The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...
Moving The Big Rocks
The anticipation of finding out if the system of snatch blocks, shackles, chokers, anchor points, and the strap binding the massive slab of rock in the bottom of the river would even budge an inch was weighing on me.
California Dredgers: A Step Closer to Getting Back in the Water
...Judge Ochoa ordered the parties to participate in mandatory settlement hearings starting June 24, 2014.
Think You Got It All? Guess Again!
May 2016Is your gold recovery actually 95%, 90%, or even a really poor 50%? If you are not testing to know what it really is, you just don’t know. Some do regular testing, but most do not.
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