How To
Ask The Experts
December 2014 by Chris Ralph
• Determining the amount of gold in a specimenAsk the Experts
Bismuth oxide for assaying?
Prospecting for Liberated Gold
Some will doubt its value given the ultra-fine particle size… Some will become encouraged about not having to incur significant time and expense to break rock.
Resurrecting An Old Hard Rock Mine--The Saga Continues
Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.
Customizing Your Dredge
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
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.
High Sulfidation Epithermal Deposits
They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.
A Data Miner Builds A Power Sluice
Data mining involves processing huge amounts of digital information to find hidden patterns and financial relationships. To executives, the findings are like gold, but on the weekends, I prefer seeing the real thing in the bottom of my pan.
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• Finding Gold in Tailing Piles
• Small-Scale Processing of Hard Rock Ores
• 2014 Index - Annual Tables of Content
• Why Did This Silver Mine Close? - Pt III
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