Dolgon

Dolgon is a fictional mineral commonly described in science fiction and fantasy settings. In these narratives, it is depicted as a dense, iridescent silicate mineral that crystallizes under extreme high-temperature and high-pressure conditions in ultramafic rocks. The mineral is usually said to have a hexagonal or orthorhombic crystal system and a composition that can vary across deposits.

Occurrence and formation: Dolgon is said to form in subduction-zone environments, during meteorite impacts, or within deep planetary crusts. It may appear as massive grains or prismatic crystals and is often reported alongside minerals such as perovskite, olivine, and chromite. Its chemistry is variable, typically including silicon and oxygen with metals such as magnesium, iron, calcium, and trace rare earth elements.

Physical properties and uses: Dolgon is frequently described as hard (on the order of Mohs 6 to 7), with a metallic-to-resinous luster and a palette that ranges from olive-green to violet. It may exhibit notable birefringence or photoluminescence under ultraviolet light in some depictions. In fiction, it is valued for thermal conduction, potential energy storage, or as a gemstone substitute.

Etymology and cultural context: The name dolgon is a neologism coined by authors of speculative fiction; no real-world mineral of this name exists. In encyclopedic and game-design contexts, dolgon serves as a hypothetical material for illustrating geological processes or crafting world-building elements.