It is home to the Na «vi, a race of tall, thin cat - like beings with distinctly human features whose holiest spot sits above a rich deposit of unobtainium, the most valuable mineral in the universe. (criticsnotebook.com)
In Avatar, the official political interpretation of the Edenic moon Pandora is unobtainium repository, unobtanium being «a great whatsit» of a natural resource «that is an emblem of humanity's greed and folly.» (firstthings.com)
But all eventually run into the same obstacle — the so - called unobtainium problem, or the need for a material that does not exist. (scientificamerican.com)