Indium!

Indium was discovered in 1863 by German chemists that were testing ores in the mines of Saxony. It is the metal used in LCD displays and touch screens. It is produced from the byproduct of zinc.  In 2002 the cost was around $94/kg, but high demands increased the price to $382-918 by 2009. It can be fatal to humans if ingested or if it comes in contact with internal organs. China is the primary producer of Indium, which produces 280 metric tons a year. The next highest production is by Rep of Korea and Japan, who produce 70 and 67 metric tons/yr, respectively. As LCD tvs and touch screens become more commonly produced in the world, the sources of indium and the countries who produce it may decrease in the future. This will cause the price to increase, and possibly start the search for another way to produce these news technologies.