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Higher Zinc Price Creates Opportunity
April 2005 by Scott Harn
Zinc is brittle and crystalline at ordinary temperatures, but when heated to between 110°C and 150°C it becomes ductile and malleable; it can then be rolled into sheets. The bluish-white metal is used principally for galvanizing iron, but also...
Gold in Guyana—Part I: Porknocking on the Puruni River Road
In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.
The Juneau Goldfields
The first time I flew into the Juneau area in southeastern Alaska, I was about 5 years old. I recall it was raining and the clouds hung low over the tall mountains. I was sure we’d crash and couldn’t see how the...
Pickering Bar Revisited
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.
Higher Zinc Price Creates Opportunity
Zinc is brittle and crystalline at ordinary temperatures, but when heated to between 110°C and 150°C it becomes ductile and malleable; it can then be rolled into sheets. The bluish-white metal is used principally for galvanizing iron, but also...
California Dredgers Shafted by Assembly Democrats
Legislation designed to provide full permit refunds to all suction dredge miners in California has been hijacked in an Assembly policy committee.
43 CFR 3809 Update
On October 30, 2001, a final rule and a proposed rule were published in the Federal Register by the Bureau of Land Management (BLM) and Department of Interior (DOI) for 43 CFR 3809. It appears that many of the letters...
Gold Prospecting for Better or Worse: Respect the Angle of Repose
If you have done any hiking in rough terrain you are well aware that going down a slope is much more difficult and dangerous than climbing it.
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• Picks & Pans: The Glory Hole
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