All Articles
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...
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Mining Boom May Be In Store For Upper Michigan
While digging a well six years ago, the owner of a backwoods camp near the Michigan-Wisconsin line cut into sparkling rock. He showed a sample to a geologist friend, who realized it was laced with zinc.
Lode or Placer: What Difference Does It Make?
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
The Smell of Gold -- Part II
While mapping, I also found rock chips in the soil that were characteristic of the same wall rock alteration that occurs adjacent to the known lodes in the greenstone belt.
The Bawl Mill
ICMJ applauds BLM whistleblower and US District Court Judge for their integrity
Chasing Float Gold—The Starry Night Wash
The sun was beginning to set, which put the light at just the right angle against the hillsides to where I believed that I spotted a very small dig and tailings pile up the hill near the top of the second wash.
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