D defs.my
Entry 1 sense Webster, 1913

Fluorite

/flo͝or'-ītˌ/ · Flu·or·ite · IPA /ˈflʊɚˌaɪt/
01 n. Calcium fluoride (CaF2), a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing c…
  1. 1.
    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 a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor.(Min.) Also: fluor spar, fluor