Small Mining Operations
Drilling Down - Looking With Drill Bit Eyes
October 2023 by Jim Richmond
Gold in Quartz
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
Drilling Down - Looking With Drill Bit Eyes
October 2023The Seven Troughs Mining District
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
Dredging Safety: Don't Ignore The Warning Signs
At first, I tried to shift things around, but then a hand with a rock would appear, so I would stop trying to adjust my gear and grab the rock to keep things moving.
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...
Selecting A Low-Risk Region To Explore, Mine or Invest
“The evidence is clear—mineral deposits alone are not enough to attract precious commodity investment dollars...”
How Far Has That Gold Traveled?
Let’s examine why your placer gold looks the way it does and what you can tell about its journey based upon its appearance.
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Sampling Mission in Placer County's Last Chance Mining District
• Discovering Nugget Hollow
• Google Earth Pro for Prospectors and Miners
• Finding Gold - Fact vs Fiction
• A Hole In One
Free:
The Bawl Mill
• Legislation and Regulation
• PLP Update October 2023
• ICMJ Visits Sumpter Oregon, Gold Mining Town
