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The Furnace Atmosphere During the Fire Assay

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.

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Mining Camp Adventures—The Collinsville-Twin Creek Goldfields


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The Eagle and High Peak Mines of Julian, California


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2006 National Mining Hall of Fame Inductees


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MMAC & PLP Update


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Proper Assaying of Placer Samples


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Legislative and Regulatory Update


Robert Sanregret—Attorney at Law
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National Association of Mining Districts

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