Apatite Stone
Apatite is a natural colored calcium
fluoride phosphate, with chlorine, hydroxyl or carbonate sometimes
replacing the fluoride. It is a source of phosphorus for plants and
is used in the manufacture of fertilizers.
Apatite is composed of three different minerals depending on the
predominance of either fluorine, chlorine or the hydroxyl group.
These are considered together due to the difficulty in
distinguishing them in hand samples using ordinary methods. The name
apatite comes from the Greek word "apate" that means "to
deceive" in allusion to its similarity to other more valuable
minerals such as olivine, peridot and beryl.
Apatite is found in all igneous, sedimentary and metamorphic rocks.
It can also be cut as gems but the softness of apatite prevents its
acceptance as a gemstone. The nature of this gemstones varies from
being transparent to opaque, with colors ranging from yellow, green,
blue, violet and colorless. Apatite is found in different worldwide
locations like: Russia, Canada, Mexico, Spain and Africa.