The mineral fluorite; an ore or native rock consisting largely of this mineral.

fluor-spar.

Mineralogy. Such a mineral containing fluorine; esp. = fluorspar, n. Also: = fluorine, n. Now rare.

see quot.

A mineral consisting of calcium fluoride, typically occurring as cubic or octahedral crystals, colourless when pure but often coloured by impurities…

A phosphate and fluoride of calcium, Ca2PO4F, found as orthorhombic crystals; also, any of a series of artificial minerals having similar crystal…