All Articles
The Furnace Atmosphere During the Fire Assay
January 2001 by Dr. Ralph E. Pray
It has been claimed that the introduction of excess air to the assay furnace during sample fusion can materially increase the gold yield. Testimony by expert witnesses for the defense in recent federal hearings dealing with the dependability of the gold fire assay includes data purported to show this.Additional articles that might interest you...
Mining for Gemstones and Mineral Specimens
August 2013
It is better in a gem and mineral mining operation that the driller, blaster and mucker be the same person in order to be able to predict placement of the desired mineral enriched pockets.
It is better in a gem and mineral mining operation that the driller, blaster and mucker be the same person in order to be able to predict placement of the desired mineral enriched pockets.
Success With A Detector
May 2008
I’m often asked, "What is the single most important skill to be successful at metal detecting?"
I’m often asked, "What is the single most important skill to be successful at metal detecting?"
Placer Gemstones
December 2001
Only the so-called “precious gems” will be considered in this article. They are diamond, ruby, sapphire, and emerald. A “gem” must be rare, hard, and durable, and possess a unique color or quality in order to be classified as a gem.
Only the so-called “precious gems” will be considered in this article. They are diamond, ruby, sapphire, and emerald. A “gem” must be rare, hard, and durable, and possess a unique color or quality in order to be classified as a gem.
Scouts New Mining in Society Badge
May 2014
...it's very refreshing to hear that some of our youth will learn of the value of mining without all the environmental spin.
...it's very refreshing to hear that some of our youth will learn of the value of mining without all the environmental spin.
Millsite Opinion Overturned!
November 2003
Interior Secretary Gale Norton approved the reversal of controversial millsite restrictions that were put in place by the Clinton administration.
Interior Secretary Gale Norton approved the reversal of controversial millsite restrictions that were put in place by the Clinton administration.
An Alaskan in the Lower 48
July 2013
Our destination was some old hydraulic workings where the old miners had washed literally mountains of material away to expose gold in ancient river channels.
Our destination was some old hydraulic workings where the old miners had washed literally mountains of material away to expose gold in ancient river channels.
Ask the Experts
March 2013
Using GIS systems to aid in mapping.
Using GIS systems to aid in mapping.
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