Jeffrey A. Newman China has halted its sale of rare earth minerals to the United States. In early April, Beijing engaged major export controls on seven rare earth elements used in everything from laser-guided weapons to MRI machines. The restricted elements include samarium, gadolinium, terbium, dysprosium, lutetium, scandium, and yttrium—require a government-issued license for export, with … Continue reading Countries other than China that have the capacity to mine and process rare earth minerals and efforts to explore the U.S. reserves