Calcium fluoride is a vital component in several industrial applications, including steel production. It is also used to make hydrogen fluoride (AHF) which, in turn, is used in the production of refrigerants and to make aluminum tri-fluoride (AlF3), critical in aluminum smelting; uranium fluoride (UF6), used in nuclear power stations; and lithium hexafluorophosphate (LiPF6), used to make the electrolyte for lithium batteries.