Caption
Fluorite (CaF2) (calcium fluoride) on Sphalerite (ZnS) (zinc sulfide).Fluorite is a source of fluorine-used in the manufacture of milk glass-as a flux for the steel industry and in refining of aluminum. One of the most popular minerals among collectors, Sphalerite is the principle ore of zinc. Sample from Elmwood Mine, Smith County, Tennessee, USA.
Availability
Only inBelgium, Canada, France, Luxembourg, Switzerland