The Principal Rare Earth Elements Deposits of the United States—A Summary of Domestic Deposits and a Global Perspective. The rare earth elements (REE) are fifteen elements with atomic numbers 57 through 71.
The Department of Energy is funding coal research that could help yield metals of critical military and strategic importance by 2020, but to do so must meet strict regulations and face entrenched Chinese competition
US DEPARTMENT OF ENERGY - CRITICAL MATERIALS STRATEGY
This report examines the role of rare earth metals and other materials in the clean energy economy. It is an update of the 2010 Critical Materials Strategy, which highlighted the importance of certain...