also: ふっかカルシウム
calcium fluoride (CaF2)
Inorganic compound used in optics, metallurgy, and as a source of fluorine. Technical term.
Calcium fluoride is used as a material for optical lenses.
Standard chemical notation using katakana for 'fluoride' and kanji for 'calcium'.
Uses the older kanji 弗 for fluorine; now largely replaced by katakana フッ.
A modern chemical term formed from フッ化 “fluoride” and カルシウム “calcium.”