A
Anonymous
Guest
Takes about the use of rare earth metals.
Example: "Mr Stephens said Arafura’s project in Western Australia produces terbium, which sells for $800,000 a tonne. It is a key ingredient in low-energy light-bulbs."
http://www.telegraph.co.uk/finance/comment/ambroseevans_pritchard/6082464/World-faces-hi-tech-crunch-as-China-eyes-ban-on-rare-metal-exports.html
Example: "Mr Stephens said Arafura’s project in Western Australia produces terbium, which sells for $800,000 a tonne. It is a key ingredient in low-energy light-bulbs."
http://www.telegraph.co.uk/finance/comment/ambroseevans_pritchard/6082464/World-faces-hi-tech-crunch-as-China-eyes-ban-on-rare-metal-exports.html