Overtonite

Overtonite is a fictional mineral that appears in the 2005 film *The Island*. In the context of the film's narrative, it is presented as a highly valuable and rare substance with unique energy-conducting properties. The mineral is crucial to the plot, as it is the primary motivation for the dystopian society depicted in the film to sustain its secret operations.

Within the story, Overtonite is described as the power source for the advanced technology used by the corporation that runs the facility. It is implied to be capable of generating immense amounts of energy, making it indispensable for their advanced medical and life-support systems. The quest to acquire and control Overtonite drives the actions of the film's antagonists and ultimately leads to the protagonists' escape.

The fictional nature of Overtonite means it has no basis in real-world geology or chemistry. Its properties and significance are entirely a construct of the film's science fiction premise. The mineral serves as a plot device, embodying the extreme lengths to which a powerful organization might go to maintain its dominance and secrecy. Its name, Overtonite, is likely a fabricated term, designed to sound plausible within a futuristic setting. The film does not provide specific details about its chemical composition, crystalline structure, or discovery, focusing instead on its narrative function.