Prospecting & Detecting
Volume is the Key to Success
June 2017 by Alan J. Chenworth
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.
One Potato, Two Potato...
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
Ask the Experts
• Using drywashers to work desert gravels
Underground in the Original 16-1 Mine
These days they employ the use of metal detectors and carefully scan the shattered rocks, hoping to hear that sound we detectorists love to hear.
Divide and Conquer—Detecting Old Placer Grounds with Friends
He no sooner had turned around and started moving when I hollered again that I had another nice one.
It Pays to Know Your Bedrock
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
Sierra County Gold—Part II
...we will continue our examination of the rich streams and mining districts, and then take a look at some of the big nuggets that have been found here.
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.
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The Bawl Mill
• Ask The Experts: What indicator rocks should I be looking for in northern Nevada?
• Ask The Experts: What to do with scheelite
• Ask The Experts: Small-scale drilling
• Quartzsite Gives Up Some Big Gold
• Prospecting After Winter Storms
• How to Stake Your Own Claim—Researching Mining Claims
• The Birthday Nugget Patch
• MMAC Update
• The Goldfield Mining District, Nevada—Part I
• Getting Started
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
