Discovery of the Mountain Pass REO Deposit
May 2001 by Edgar B. Heylmun, PhDHow does one go about discovering a rare earth oxide (REO) deposit when he is not familiar with the rare and unusual rocks and minerals that are found in such deposits? That was the case at Mountain Pass, California, yet the deposit was eventually discovered and mined.
This was not a month for the weak-hearted. During the past thirty days, we have had an explosive intensification of the Middle East conflict, threats of OPEC using the “Oil Weapon” once again, a growing chain of events flowing out of the Enron collapse and...
Q: I have samples that have assayed 45-75% columbium/niobium. What is it used for? Do you know anyone who is actively processing this ore? Where should I go from here?
“We feel that we can clean up an area that has been abandoned after 100 years of mining,” Lyon said.
The automatic discrimination and exclusion of man from nature, like his access and use of the land, presupposes man as a destructive force for change, absent a relative hard look at the natural forces of change. Setting aside lands for non-use does not encourage wise use symbiotic tenets, which man has traditionally formed in his coexistence with nature.
The site of the old mining camp of Quartzville is 30 miles northeast of Sweet Home, Oregon, via a road which is paved for much of the distance. It is located in mountainous terrain along the west slope of the rugged Cascade Range, with elevations ranging from 1,600 to over 4,000 feet.
During our visit during late May, 2011, the vertical nature of the mineralized areas was clearly visible, as were numerous examples of quartz-carbonate veins in shear zones, faults and folds.
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