noun, noun which may take the genitive case particle 'no'
fluorite; fluorspar
A common mineral (calcium fluoride) used in industry and as a gemstone. The Japanese name literally means 'firefly stone' because some specimens glow when heated.
Fluorite is a mineral composed of calcium fluoride.
This fluorite crystal has a beautiful purple color.
Standard kanji spelling for the mineral fluorite.
Variant kanji form using 螢 (kyūjitai of 蛍); rarely encountered.
Formed from 蛍 “firefly” and 石 “stone,” referring to fluorite’s emission of light, notably when some specimens are heated.