rare earth metals mine. 稀土金屬礦。

Reuters
PhotoBlog - 7 billion people tax the world's environment
http://photoblog.msnbc.msn.com/_news/2011/10/25/8434505-7-billion-people-tax-the-worlds-environment
http://photoblog.msnbc.msn.com/_news/2011/10/25/8434505-7-billion-people-tax-the-worlds-environment