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Platinum—Group Metals
September 1999 by Guest Writer
by Henry E. HilliardExcerpted from USGS "1998 Annual Review"
Heavy Sands Mining
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.
Alaska and Nevada Continue to Lead the Pack
Alaska’s mining industry posted a record-breaking year in 2006, largely because of the high prices for zinc and other metals, state officials said.
The Forgotten Specimen—Part II
The walk back to the car and subsequent search for Frieda took a lot longer than I would have liked. I had wandered much further than I thought.
Wyoming's Billion Dollar Nugget—The Trilogy Ends
With eight loads processed, a pumpkin-size rock fell into the hopper, stopping the whole operation until I could lift it out.
NMFS Official Admits Bogus ESA Analyses
In its typical ham-handed approach to limiting government power, Congress specified that “critical habitat shall not include the entire geographical area which can be occupied by the threatened or endangered species”...
The First Mine in America
Many people, mostly New Mexico Native Americans, but including this miner, wear turquoise from the first mine in America. I took my blue stones from the old mine by hand labor, underground, a half century ago.
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• Looking Back
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