oluumdur

Oluumdur is a fictional mineral described in speculative fiction and world-building. It is prized for its luminescent blue-green color and a dense, fracture-prone crystal structure.

Etymology and discovery: The name combines imagined roots from the Verdic language—olu- meaning light and dur meaning stone. It was first described in the Veridian Chronicle by geologist Lira Sren in 2047 AR.

Physical properties: Oluumdur typically forms in granular to prismatic crystals, with a Mohs hardness of 6.0–6.5 and a density around 3.95 g/cm3. It has a vitreous to resinous luster, pale blue to azure color, and exhibits blue-green fluorescence under ultraviolet light.

Geology and occurrence: Deposits occur in high-temperature hydrothermal veins within greisenized granites, often accompanying quartz, fluorite, and malachite. In the fictional economy, total reserves are scarce, with mining restricted to certified operations to manage environmental impact.

Uses and significance: Oluumdur’s luminescence makes it attractive for jewelry and decorative objects; its photoluminescent properties have inspired speculative applications in light-based sensors and displays within the fictional world. It also serves as a cultural symbol in Veridian trade networks.