Fluorine is incredibly reactive, so although it is relatively common in the earth's crust, it is normally found as fluoride ions in minerals. Fluorite, CaF2, is the most common fluoride mineral and the main source of fluorine for commercial uses.
Fluorine is incredibly reactive, so although it is relatively common in the earth's crust, it is normally found as fluoride ions in minerals. Fluorite, CaF2, is the most common fluoride mineral and the main source of fluorine for commercial uses.