Most of the houses in Coober Peedy are underground due to the hellish temperatures in summer. The entire town exists by the grace of opal. Opal is the proof that humans are the dumbest species on earth. It's is a material that can be used for absolutely nothing. It has no purpose, no meaning. Only the fact that it is extremely rear and it looks nice, makes it more valuable then gold. All you can do with it is make jewelry.
