Small Mining Operations
To Foam or Not to Foam
February 2020 by Harry Griffin
George was considering filling his dredge floats with closed-cell foam, ensuring that there would be no area available within each float for flooding.
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.
The Perfect Summer
Within the first 3 hours he and I had found pocket after pocket of gold and couldn't wait to tell Levi of our treasure.
PLP Update: Back to The 'Swamp' on Behalf of Small Miners
We spent the morning in a meeting with one of the higher-ups at the US Forest Service. I presented him with 412 complaints received from our readers, along with a summary of the complaints to make his job easier.
Cyanide-Free Gold Separation
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
Prospecting Hard Rock
We panned out maybe three gold pans of the material and we were shocked at the gold that was there. This rock appeared to be rich.
What Is Your Grade?
After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?
From Curiosity to Mine Owner - Pt II
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When we last heard from Ernie, he was still in Honduras and we were anxiously waiting to hear how the set up and training went at the mine. It got a bit complicated after that.
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The Bawl Mill
• Ask The Experts - Can you explain how caliche forms?
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• Ask The Experts - Do you think it’s realistic for a detectorist to recover a couple of ounces per week if working full time?
• Ask The Experts - Can you suggest proper discrimination settings for my detector?
• Time to Stake Your Own Mining Claim
• A Day On The Yuba River
• Determining The Optimal Crushing Size for Gravity Recovery
• Gold Prospecting for Better or Worse: The Pains of Prospecting
• Following Man-Made Ditches to Recover More Gold
• Sixteen to One Gold Mine: Going Underground - Pt II
• All About Native Silver
• Internet Forum Gold
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
