Geologist Matt Joeckel displays a core sample of carbonatite rock containing niobium and rare-earth elements, which was taken from a deposit near Elk Creek, Neb., in early February. (Associated Press) Elk Creek, Neb. (population 112), may not be so tiny much longer. Reports suggest that the southeastern Nebraska hamlet may be sitting on the world’s largest untapped deposit of “rare earth” minerals, which have proved to be indispensable to a slew of high-tech and military applications such as laser pointers, stadium lighting, electric car batteries and sophisticated missile-guidance systems.Canada-based Quantum Rare Earths Developments Corp. last week received preliminary results...
