Small Mining Operations
Fire Assay Finish by Silver Nitrate Fusion for PGMs
July 2021 by Mike Robinson
…my intent is to distribute this information in layman’s language so that even the “backyard/shade tree/mom & pop” fire assayers can benefit.
Mining Pegmatite Deposits
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
Nice Specimen Gold Recovered in Northern California
Each specimen is carefully examined to determine if it would be beneficial or not to use an acid treatment to reveal more of the gold.
Placer Channel Sampling
Sampling gold placers can be rewarding, but remember to treat the samples so you are not high grading or low grading your results. Learn the rules and apply them so your samples are accurate.
PLP Update: How to Restore The Rights of Suction Dredge Miners
A two-pronged approach is necessary to restore suction dredging; federal preemption needs to be established as addressed above via petition; and clarification from the EPA is needed to establish that no Section 402 permit is necessary when there is no “addition” of a pollutant.
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.
A Few Methods for Sampling Hardrock Deposits
With a little homework and a methodical approach to sampling, a prospector can determine if a deposit is worthy of more of an investment...
Dredging Tips and Tricks: A Measure of Water Pump Efficiency
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?
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The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - What percentage of the gold price can I get from a buyer?
• Ask The Experts - Is a hookah battery setup legal in California?
• Ask The Experts - Are friends and relatives regulated like employees?
• Ask The Experts - What do you use for flux for melting gold?
• Ask The Experts - Why Isn't There A Dual Coil Detector?
• Ask The Experts - Who has the rights to a vein that goes under a neighboring claim?
• Ask The Experts - Is platinum usually magnetic?
• Ten Detecting Tips for the Savvy Desert Prospector
• All About Hard Rock Drills
• Gold Prospecting for Better or Worse: When a Gold Prospector Goes to a Diamond Mine
• Why So Much Gold in Nevada?
• A Golden Past
• Do Gold Nuggets Come Out At Night?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
Judge Rules Against Dredger in Idaho Civil Case
• PLP Update
