http://www.mining.com/infographic-the-periodic-table-of-smartphones-56390/ http://www.mining.com/infographic-the-periodic-table-of-smar... rounds up the rare ea

http://www.mining.com/infographic-the-periodic-table-of-smartphones-56390/ http://www.mining.com/infographic-the-periodic-table-of-smar... rounds up the rare earth elements and where they are used