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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.The Art of Finding Coarse Gold Part II—Pocket Hunting for Residual Placers
It is a fact that many of the well-known placer districts of the Western US have small veins that contain sparse pockets of coarse gold as their source. This is the main reason why many rich placer districts have seen little or no hard rock mining...
Company Notes
• Vista Gold Corp.
• Latitude Minerals Corp.
• Altair International Inc.
• Homestake Mining Company
• Kinross Gold Corp.
• Rayrock Resources Inc.
Ask the Experts: VMS ore
Q: Are there any mills that handle VMS ore?
Reading A River: Finding The Paystreaks—Part II
How to read a river to find gold. In this second of a two-part series, we will take a look at how a river’s grade affects the formation of paystreaks, and how to go about reading a river to see the various catches and parts of a stream where...
Restoring the Rule of Law to US Mining
Senator Ben Nighthorse Campbell (R-Colorado) sponsored the Federal Agency Compliance Act (S-1166) in the 105th Congress to prevent bureaucrats from abusing their office by ignoring federal case law. This legislation apparently failed, but is still needed. During the Clinton administration, Interior Secretary Bruce Babbitt illegally directed the Bureau of Land Management (BLM) to...
Gold Prospecting for Better or Worse: Powerless
My brother Darryl and I had not had a prospecting adventure since January and we wanted to try out our new drywasher, so we decided to go for the weekend and check out some claims near Barstow…
The ABCs of XRF
Fast forward to present day and the XRF has come of age. Pull the trigger on the hand-held device and you get a nearly instant assay of the surface of a rock.
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