Fictional universe of Avatar Fictional universe of Avatar In the 2009 science fiction film "Avatar", director James Cameron conceived a fictional universe in which humans seek to mine unobtanium on the fictional exoplanetary moon, Pandora. The Earth-like moon is inhabited by a sapient indigenous humanoid species called the Na'vi, and varied fauna and flora. Resources Development Administration (RDA) scientists, administrators, recruits, support, and security personnel travel to Pandora in the 22nd century to discover this lush world, which is inhabited by many lifeforms including the human-like Na'vi. The clan with which the humans have contact in the film "[lives] in a giant tree that
Blue John (mineral) Blue John (mineral) Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a form of fluorite with bands of a purple-blue or yellowish colour. In the UK it is found only at Blue John Cavern and Treak Cliff Cavern at Castleton in Derbyshire. During the 19th century, it was mined for its ornamental value, and mining continues on a small scale. Deposits of fluorite have been recently found in China with colouring and banding similar to the classic Blue John stone. The most common explanation for the name is that it derives from the French "bleu-jaune", meaning 'blue-yellow'.