Prospecting for Silver With a Geiger Counter
January 2001 by Edgar B. Heylmun, PhDLight-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
• USFS Draft Reclamation Bond Guide needs your comments
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“Metal detecting is not a social function.” So said a good friend of mine. And it’s true. But that’s not to say the benefits of having a prospecting partner don’t outweigh those of being alone.
That prospecting effort you are about to spend your time on...is it worth your effort? If you are going to devote your time to it, you will need all the facts you can get.
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Budgetary deficits can be reversed by a combination of only two factors; increasing revenues and decreasing expenditures, and we would prefer a combination of both factors occurring simultaneously. Unfortunately, it appears to us that President Obama failed to respond to such simple considerations.
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
Eight masked gunmen forced their way through the security fence at Brussels’ international airport, drove onto the tarmac and snatched some $50 million worth of diamonds from the hold of a Swiss-bound plane without firing a shot.
The Bawl Mill • Over the Divide • Our Readers Say • Special Editorial: Gold Anti-Trust Action Committee Believes They Have the Evidence • World Gold Council News • Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits • Picks & Pans: An Exciting Hobby • The Furnace Atmosphere During the Fire Assay • The Hanging Tree • Gold in Chihuahua, Mexico • ICMJ 10th Annual Photo Contest Results • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back