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Answer for the clue "A soft mineral (calcium fluoride) that is fluorescent in ultraviolet light ", 8 letters:
fluorite

Alternative clues for the word fluorite

Word definitions for fluorite in dictionaries

Wiktionary Word definitions in Wiktionary
n. A widely occurring mineral (calcium fluoride), of various colours, used as a flux in steelmaking, and in the manufacture of glass, enamels and hydrofluoric acid.

WordNet Word definitions in WordNet
n. a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine [syn: fluorspar , fluor ]

Wikipedia Word definitions in Wikipedia
Fluorite (also called fluorspar ) is the mineral form of calcium fluoride , CaF. It belongs to the halide minerals . It crystallizes in isometric cubic habit , although octahedral and more complex isometric forms are not uncommon. Fluorite is a colorful ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Fluorite \Flu"or*ite\, n. (Min.) Calcium fluoride ( CaF2 ), a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as ...

Usage examples of fluorite.

They were set up on a smooth, curving expanse of the outer surface, except for a massive fluorite camera.

However, Pennons is going around with the camera staff taking pictures with fluorite cameras, and we'll know for certain in a few hours.

Here was a cluster of quartz crystal points, the smallest of them as long as her arm and the largest taller than Tannim—there a polished boulder of amethyst big enough to crush the Mach I—ahead a single giant violet diamond‑shaped fluorite crystal balanced precisely on one point.

Here was a cluster of quartz crystal points, the smallest of them as long as her arm and the largest taller than Tannim—there a polished boulder of amethyst big enough to crush the Mach I—ahead a single giant violet diamond-shaped fluorite crystal balanced precisely on one point.

Tannim said softly, staring at the next rock, a milky yellow multifaceted crystal which balanced on a single point like the fluorite crystal now behind them.

Here was a cluster of quartz crystal points, the smallest of them as long as her arm and the largest taller than Tannim—there a polished boulder of amethyst big enough to crush the Mach I—ahead a single giant violet diamond-shaped fluorite crystal balanced precisely on one point.

So from 2042 on, a major effort had been put into building automated factories, scattered all over the planet, to process the gases from local sources of carbon and sulphur and fluorite, and then release them into the atmosphere.