Still issue with setting up mining/refining/purification investment. Geologists discover rare earth elements in Rajasthan Out of the 18 exploratory projects worldwide, the concentration of these minerals at the Indian site comes at the third spot. “In view of the high concentration of the rare earth elements, the felsite dykes of Phulan and the adjoining areas of Siwan Ring Complex area (Barmer district) form a potential area for detailed exploration for rare earth elements. industries rely on import from China. With 95% of world’s rare earth taking place in China, the country controls the global trade on these minerals.