How To
Using Geologic Maps
December 2015 by Chris Ralph

Determining The Optimal Crushing Size for Gravity Recovery
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
Detecting Alone -- What to Look For

Breaking Rock the Old School Way
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
Sampling for Success—Part II
The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.
Ask The Experts
• Two questions: Is fool's gold magnetic? And how do you go about filing a miing claim?
What Have You Got to Lose?

Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
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