Uputkimaneometrit

Uputkimaneometrit is a fictional mineral described in worldbuilding and speculative geology. The name is a coinage intended to suggest a newly identified uranium-bearing silicate with distinctive properties, and it is treated as a hypothetical mineral rather than a real-world species.

Composition and structure: In the fictional framework, uputkimaneometrit is described as a layered silicate with a polymerized tetrahedral framework that incorporates uranium in octahedral coordination, along with trace rare-earth elements. The exact chemical formula is purposefully variable in different renderings of the concept, reflecting its status as a hypothetical mineral. The material is said to exhibit luminescent behavior under ultraviolet light in some interpretations.

Physical properties: Reported characteristics include a greenish to brown coloration, a resin-like or submetallic luster, and translucence to opacity. Hardness is placed in the mid-range on the Mohs scale (around 5.5–6), with a relatively high specific gravity (approximately 4.0–4.6 g/cm³). Cleavage is described as imperfect, and crystals—when present—are often described as prismatic. Fluorescence under UV light is a feature mentioned in some versions of the lore.

Occurrence and formation: In the fictional setting, uputkimaneometrit is believed to form through high-temperature hydrothermal processes that alter ultramafic rocks, producing nodules within metamorphosed serpentinites or related lithologies. The mineral is usually depicted as relatively rare and localized to specific tectonically active regions in the storyworld.

Uses and safety: Within the narrative, potential applications include radiation shielding, luminescent markers, or decorative stones. Practical use is limited by its radioactivity and the rarity of high-quality specimens, necessitating careful handling and safety protocols in-universe.

See also: imaginary minerals, speculative geology, worldbuilding materials.