Uranium Deposits

July 2001 by Edgar B. Heylmun, PhD

Our Readers Say

January 2001
Concerning assay comments...

The Hill of Gold

February 2018

I was amazed and surprised, and I took a moment to admire how beautiful this coarse chunk of gold was. It later weighed exactly one-half ounce.

Elections May Bring Rush to Republic of Congo

August 2006
Elections in the Republic of Congo may bring a mining boom to a country that has been ravaged by wars and corruption.

Spencer Opal Deposits, Idaho

July 2003
In order to give the reader a better appreciation of some alternative valuable minerals that can be found by the average prospector, we visited Bob Thompson’s Opal Mountain Mine located in Spencer, Idaho.

Ask the Experts: gold per ton; improving assay method

May 2012
Q: How much gold do I have per ton and how can I improve my assay method?

Ask the Experts

April 2012
Q: Graphite spray to prevent sticking when using cast iron molds

California State Gold Panning Championships September 1-2, 2007

October 2007
Ready, Set, Go! The stopwatch clicks on and the panner starts like being fired out of a cannon. It’s the Labor Day weekend and the State Championships are on their way.

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