In the 2009 film Avatar, humans seek the valuable mineral unobtanium on Pandora.
Unobtanium is a fictional material whose extreme value motivates the mining operation in Avatar. The Resources Development Administration wants to extract it from Pandora, where deposits lie beneath territory inhabited by the Na’vi. The conflict between corporate expansion and the Na’vi’s home drives the film’s central plot.
The word “unobtanium” is an engineering joke and informal term for a material with impossible or impractical properties. It is formed from “unobtainable,” with the ending altered to resemble a material name. Cameron’s film turns that humorous term into a specific fictional commodity.
Unobtanium is not the same as the biologically and culturally important elements of Pandora’s ecosystem. The mineral’s economic value is a human justification for extraction, while the story emphasizes the ecological and ethical costs of that pursuit.