The Furnace Atmosphere During the Fire Assay
January 2001 by Dr. Ralph E. PrayIt 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.
Regulators gave final approval to a nickel and copper mine for the Upper Peninsula.
The massive 2013 theft, in which tens of millions worth of gems were stolen from the hold of a departing Swiss-bound plane, had all the hallmarks of an “Ocean’s Eleven” operation. And it still might still get a Hollywood ending.
• "The general public must be informed..."
• "Bring Carolyn back."
• "...when people see my copy they always want to borrow it."
Leon was leading the way as we hiked the trail out of North Canyon. Without any warning Leon leaped into the air. He had just spotted a big rattlesnake lying in the grass beside the trail.
• What's that smell?
• Do you recognize the face on that milk carton?
• The debate over hockey
• Sir, what size and color bra do you prefer?
• Beam me up
The gold from 80 years ago still holds all of its value—it’s the Dollar that has been damaged.
The Bawl Mill • Over the Divide • Our Readers Say • Special Editorial: Gold Anti-Trust Action Committee Believes They Have the Evidence • World Gold Council News • Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits • Picks & Pans: An Exciting Hobby • Prospecting for Silver With a Geiger Counter • The Hanging Tree • Gold in Chihuahua, Mexico • ICMJ 10th Annual Photo Contest Results • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back