Distribution of yttrium and rare-earth elements
in the Penge and Kuruman iron-formations, Transvaal Supergroup, South Africa.
Although this magnet scrap contains about 29% neodymium (by weight), the rare-earth element
is valued at $30 per kilogram (or just slightly less per ounce than the price of silver), so it's worth recovering.
Crystalchemical controls on rare-earth element
concentrations in fossil biogenic apatites and implications for paleoenvironmental reconstructions.
The 17 rare-earth elements
are cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), holmium (Ho), lanthanum (La), lutetium (Lu), neodymium (Nd), praseodymium (Pr), promethium (Pm), samarium (Sm), scandium (Sc), terbium (Tb), thulium (Tm), ytterbium (Yb), and yttrium (Y).
For instance, in the 1970s, rare-earth elements
had few uses outside of some specialty fields, and were produced mostly in the United States.
Whole rock major, trace and rare-earth elements
geochemistry of 24 selected rock samples were carried out to understand the tectonic and petrogenetic behavior of these rocks.
China is now the world's main supplier of rare-earth elements
, which are minerals that play a critical role in making products from basic communication devices to high-tech military weaponry.
The rising cost of 17 rare-earth elements
, alternately called rare-earth oxides or rare earths, which are essential to the production and operation of some of our most commonly used products, such as cell phones, magnets and rechargeable batteries.
Concerned about the supply of rare-earth elements
and minerals essential to producing a wide variety of high-technology goods, the House on September 29 passed a bill that would create the Rare Earth Materials Program within the Department of Energy to quantify U.S.
Chinese officials also suggested the possibility of banning exports to Japan of rare-earth elements
- raw materials crucial for many Japanese manufacturing processes - and appear to have done so informally.
Two Agricultural Research Service (ARS) scientists believe that rare-earth elements
may be the best tool for tracking--and pinpointing sources of--costly soil erosion.
In rare-earth elements
, ARS scientists John Zhang, a hydrologist, and Mark A.
The plant in question is a factory owned by GM subsidiary Magnequench Inc., which uses rare-earth elements
to produce powerful hi-tech magnets with important military applications.
Today, "interest is evolving into the platinum-group elements, including diamonds and rare-earth elements
used in high-tech (applications).
is a publicly traded mineral resource company focused on exploration and development of rare-earth elements
(REEs), with a significant distribution of critical rare earths (CREEs).