Tag Archives: mountain pass

USGS Releases Resource Estimate for Afghanistan Rare Earth Prospect

The U.S. Geological Survey (USGS) estimates at least 1 million metric tonnes of rare earth element resources within the Khanneshin carbonatite in Helmand Province, Afghanistan. This estimate comes from a 2009-2011 USGS study funded by the Department of Defense’s Task Force for Business and Stability Operations (TFBSO).

The Khanneshin carbonatite contains a major potential source of light rare earth elements (LREE), such as lanthanum, cerium, and neodymium. The LREE prospects in the Khanneshin carbonatite are comparable in grade to world-class deposits like Mountain Pass, CA, and Bayan Obo in China, both of which primarily contain LREE. (more…)

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Rare Earth Elements in U.S. Not So Rare

*Significant Deposits Found in 14 States*

Rare Earth Elements. Image credit: USGS

Approximately 13 million metric tons of rare earth elements (REE) exist within known deposits in the United States, according to the first-ever nationwide estimate of these elements by the U.S. Geological Survey.

This estimate of domestic rare earth deposits is part of a larger report that includes a review of global sources for REE, information on known deposits that might provide domestic sources of REE in the future, and geologic information crucial for studies of the availability of REE to U.S. industry.

The report describes significant deposits of REE in 14 states, with the largest known REE deposits at Mountain Pass, Calif.; Bokan Mountain, Alaska; and the Bear Lodge Mountains, Wyo. The Mountain Pass mine produced REE until it closed in 2002. Additional states with known REE deposits include Colorado, Florida, Georgia, Idaho, Illinois, Missouri, Nebraska, New Mexico, New York, North Carolina, and South Carolina. (more…)

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Rare Earth Elements: The World is Rapidly Running Out and China Has Most of The Remaining Supply

Most people have no idea what rare earth elements are, but a wide array of the technologies that we use every single day are dependent on them.   

Without rare earth elements, we would have no hybrid car batteries, flat screen televisions, cell phones or iPods.  Without rare earth elements, the entire “green economy” would not be able to function, because almost all emerging green technologies use them.

(more…)

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