Using Geologic Maps
December 2015 by Chris RalphIn order to see what geologic maps can do, we need to think about what we are looking for.
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.
I figure there are a lot of new people out there who have the same question. I will try to give some answers that hopefully will give you more confidence in finding your own spots.
Prospectors have many reasons why they might want to break rocks. These include dividing up a specimen too large to carry.
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.
• Two questions: Is fool's gold magnetic? And how do you go about filing a miing claim?
It’s accepted knowledge that wet methods will recover more fine gold than dry methods and processing the gravel as a whole will get more gold than only using a metal detector. The question is how much more?
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.
The Bawl Mill • Our Readers Say • Ask The Experts • SB 838 and the Salem Witch Hunt • Small-Scale Hard Rock Production • Researching Mineralized Areas • MMAC & PLP Update • VLF Detector Operating Modes • Canadian Company Recovers 1,111-Carat Diamond • Lost Sally's Gold • Time to File Claims in Southern California • Colorado Disputes Key Part of EPA Mine Report • Picking Our Way Through Bedrock • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver