07/03/2012 11:44 am ET

Rare Earth Metals Future May Hinge On China

Even though China claims that its own supplies of the metals have been over-estimated (China says it only accounts for 23 percent of global deposits, while the the rest of the world puts its share at about a third), until recently the metals were plentiful enough in the country to be used as clasps in women’s purses.

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