Blue apatite is also sometimes heat treated to enhance its color. Apatite is a common resistate mineral occurring in a range of host rocks and ore-related hydrothermal alteration assemblages. The phosphate encourages the formation of insoluble lead apatites on the walls of the pipe. Hydroxylpyromorphite Pb 5 (PO 4 ) 3 OH is the lead apatite that is most often used to model lead levels in tap water; however, its presence has not been confirmed. Apatite in several porphyry copper deposits in British Columbia has a unique set of physical and compositional characteristics that can be used to evaluate the chemical conditions of magmas that formed the causative intrusions or associated hydrothermal alteration. Apatite is a calcium-phosphate mineral and is used in fertilizers and jewelry. Phosphate is added to drinking water in the UK to minimise the release of lead from lead water pipes. Apatite is widely distributed in all rock types ( igneous, sedimentary and metamorphic), but usually as small disseminated grains, or cryptocrystalline fragments. Because apatite is quite commonly found and not expensive, synthetic versions are rare. Apatite is found in igneous, metamorphic and sedimentary rocks. Apatite. It is said that wearing apatite will enhance focus, clarity for concentration, intellect, acceptance and unconditional love.

Large, well-formed crystals can be found in certain contact metamorphic rocks.

Hydroxylapatite is formed naturally of calcium apatite in the human teeth and bones. No. It was found in the form of orange-brown coatings and infillings of voids, where it formed by translocation of phosphate colloids derived from the dissolution of bone apatite.

In 2000, nine companies operated seventeen phosphate rock mines in the U.S. Florida is the main source of phosphate rock in the U.S. Apatite Metaphysical Properties Apatite is aligned with the zodiac sign of Gemini.The gemstone is believed to decrease appetite (hunger) as well as enhance insight, creativity and learning. Apatite formed predominantly in ALP-loaded catechol/poly(ethylene glycol) (cPEG) and gellan gum hydrogels (Douglas et al., 2012b, 2014a,b), while a mixture of amorphous CaP and apatite formed in collagen, OPF, and chitosan hydrogels (Douglas et al., 2012b, 2013a). Apatite is a mineral which may be a part of a formed rock, but is not considered a rock by itself.

Apatite is typically untreated and most apatite you come across will be in its natural form. Apatite's commonly form as prismatic crystals and can be found in all types of rocks. Hydroxyapatites are a naturally occurring mineral form of calcium apatite, with the general formula Ca 5 (PO 4) 3 (OH). Hydroxyapatite is the hydroxyl end member of the complex apatite group, where the OH-ion can be replaced by fluoride, chloride, or carbonate ions.