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Pickering Bar Revisited
August 2008 by Don Robinson
Pickering Bar on the North Fork of the American River is a fascinating place. It’s remote, taking almost two hours to get there from the small mining town of Iowa Hill, which is in Placer County, California.
Legacy of the Wandering Jew Mine
The Tyndall Mining District of Santa Cruz County contains the oldest mines in the state of Arizona. Described as the most celebrated mineral region in North America, its ancient mines have produced a phenomenal amount of rich masses of pure native silver and ore prior to the arrival of the early Spaniards extending into the present century.
Ask The Experts—Iridium
Q: I believe I have found a deposit that contains iridium. What can you tell me about iridium? Are there any tests I can do in the field to confirm it is iridium? How much is iridium worth? Where can I get it assayed? Can I refine it myself?
The Bawl Mill
- Brother, can you spare a cell phone?
- Houston, we have a drug problem...
Melman on Gold & Silver
Boy, do we ever live interesting times! What other conclusion can we come to when the only real excitement on the whole scene is a kids' book and a TV series about a bunch of people acting in a manner to make the word "weird" seem respectable!
Mining Deaths Drop Overall in 2000
Fatal injuries at mining operations in the United States last year decreased nearly six percent from the previous year, according to preliminary data from the US Department of Labor’s Mining Safety and Health Administration (MSHA).
Sampling Placer Stockpiles
Sampling other people's stockpiles or dumps has some inherent risks that sampling undisturbed ground does not have.
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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