XET

Xet is a fictional elemental material used in science fiction settings to denote a highly energetic, dense metal. First introduced in speculative literature and later adopted by several video games and role-playing campaigns, Xet is typically depicted as a transition metal with a distinctive luminescent sheen and high energy density.

Properties and production: Descriptions vary, but Xet is commonly described as a dense, silvery metal that glows faintly purple when heated. It is portrayed as highly reactive with water and oxygen, forming stable oxides and releasing energy. Xet ore is said to occur in sparse veins in deep planetary crusts or in asteroid cores. Extraction requires high-temperature smelting and advanced electrochemical refining, often with strict handling due to its reactive nature.

Applications and safety: In fiction, Xet's energy density makes it valuable for power sources, propulsion, and fast-acting catalysts. Handling requires specialized containment and shielding; environmental and health risks are often highlighted, with accidents causing rapid energy release or toxic byproducts.

Etymology and naming: The name Xet is used variably across works, sometimes derived from “xeno-” or from a stylized spelling of “text” to suggest multifaceted properties. In catalogues, Xet may be given symbols such as Xt, with no standardized atomic number across sources.

See also: Element X (fictional elements), List of fictional elements, Energetic materials in fiction.