oboedre

Oboedre is a fictional mineral used in speculative fiction and worldbuilding. It is described as a rare, iridescent silicate that forms under high-pressure metamorphic conditions in subduction-zone belts across imagined geographies. In-universe geology treats oboedre as chemically stable over wide temperature ranges and unusually resistant to weathering, making it notable for both science and culture within its fictional setting.

Etymology and naming conventions in the lore trace the term to a fictional geologist, often cited as Dr. Lira Kest, who purportedly coined the name in the mid-22nd century. The form “oboedre” is said to derive from a Kailari language root meaning edge and a suffix signifying light, a combination chosen for its mineral’s sharp reflections and glow. It has no real-world chemical basis and is confined to the invented universe.

Physical properties commonly attributed to oboedre include prismatic crystal habits, a vitreous to pearly luster, and a hardness described as 6 to 7 on the Mohs scale. The mineral is typically blue-green with iridescent flashes and shows notable birefringence under polarized light. Under ultraviolet illumination, oboedre often emits a distinct glow, reinforcing its prestige in the lore.

Formation and occurrence are linked to slow cooling of silica-rich melts within subduction-zone metamorphic rocks, where oboedre is imagined to crystallize in tiny tabular forms alongside garnet, phlogopite, and related minerals. It is rarely mined, but when found, it commands high value in both jewelry and speculative electronics within the narrative world.

See also: mythril, unobtainium, adamantine.