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.

Feds Order Closure of Idaho Mine

February 2012
Federal safety inspectors have ordered one of the nation’s deepest underground mines closed in northern Idaho following an investigation prompted by a series of accidents that killed two miners over the last year.

Think You Got It All? Guess Again!

May 2016

Is your gold recovery actually 95%, 90%, or even a really poor 50%? If you are not testing to know what it really is, you just don’t know. Some do regular testing, but most do not.

Working the Belmont Mine—1953 (Part 3—Conclusion)

December 2002
Tuesday morning started off much like Monday except Jack wasn’t packing a bunch of drill bits. We wandered off toward the bottom of the raise, adjusted our bed boards, had a cup of coffee from our buckets, and smoked a cigarette. Then Jack stretched, stood up, and remarked, “Guess I might as well go up and see what it looks like. You wait here for now. When I call down, send up a section of ladder and eight laggings.”

Legislative and Regulatory Update

March 2010
• More “bull” from Fish & Wildlife
• Global Warming is cooling off

Melman on Gold & Silver

June 2011
If the government can totally ignore the reality of exceeding the national debt limit, we can only wonder what all the current fuss relating to extending that limit is all about.

Placer & Lode Gold Deposits

October 2001
Even though there are many varieties of gold deposits, prospectors often refer to two general types: placer and lode. Some lode examples include...

Reinventing the Wheel—The Infinity-Jet

June 2004
To all the miners who read the article, “New Life for the Suction Dredge,” printed in the December 2003 issue of ICMJ, I have an amusing update for you. I periodically go through my old back issues and I found the December 1981 issue very interesting.

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