fluorspar
1. [ noun ] (geology) a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
Synonyms: fluor fluorite
Related terms: mineral calcium fluorine
Similar spelling:   Flowers
  flourish
  fluorocarbon
  fluorosis
  fluoresce
  Flores
  fluoroscopy
  fluoroscope
  fluorescent
  fluorescein
  flourishing
  flour_corn