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Crushing, Grinding and Pulverizing
May 2017 by Alex Dolbeare
There are many different ways to get the gold out. We will take a look a few examples of crushing and grinding, and potentially which ores they may be best suited for.
Placer Gold in the Black Hills, South Dakota
During the Indian Wars in 1874, General George Custer and his men camped on French Creek in the southern Black Hills, near the present site of Custer, South Dakota. Two of his men found placer gold in French Creek. Word got out, and before long, a party of prospectors arrived. However, the government had signed a treaty with the Sioux Indians to stay out of the Black Hills. This led to prospectors sneaking in and working creeks all over the region at their own risk.
The Bawl Mill
• The sky is falling...
• Unwanted money...
• Snow cones for safety
• The rules are changing
Arizona Mines and Minerals Releases New Directory
The Directory of Active Mines in Arizona-1999, just released by the Arizona Department of Mines and Mineral Resources, reflects the strength and diversity of the Arizona mining industry.
PLP Update
Fight for Public Lands in the Eagle Mountains of the Mojave Desert
Eight Reasons To Release Oil From The Strategic Petroleum Reserve
President George W. Bush lifted the executive moratorium on oil drilling in the Outer Continental Shelf (OCS), which was first established by his father, President George H.W. Bush, in 1990. The current president has argued that the United States should be “drilling for more oil here in America to take the pressure off of gasoline prices.”
How to Refine Silver—Pt I
Silver refining has been used from ancient times to change the characteristics of the metal. Early metallurgists refined silver by heating it a couple hundred degrees above its melting point and holding the metal at an elevated temperature for a period of time.
Fake Assays & Assayers
There may be as many crooked gold assayers in the Southwestern U.S. as there are self-employed honest ones. Right now it looks that way. What can be done to stop the crooks? Why do the scams continue? How can you tell the difference between the good guys and the half-assayers? Who are the crooked ones? Where are they?
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• Over The Divide: Miles John Mitchell
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