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December 2012 by Chris Ralph
What is the best type of mat to use in a high banker set up?Hard Rock 101: Small-Scale Blasting
…the process remains much the same: Drill holes, load explosives, close up the holes, blast and muck out the resulting broken rock.
A Model Mining Operation
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.
Reading A River: Understanding Erosion and Gold
Rivers are not just random and accidental; streams and other drainages are what they are because of the forces of erosion acting on the bedrock.
Prospecting for Diamonds
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
What Have You Got to Lose?
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?
Detecting Alone -- What to Look For
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.
Gold Recovery with Centrifugal Bowls
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
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• Detecting at the Sixteen to One Mine
