How is apatite formed




















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Microporous and Mesoporous Materials , , Chitosan effects on glass matrices evaluated by biomaterial. There are three common forms of apatite that appear in nature. The three apatites are distinguished by the ions in their crystal lattice. There are many more, but these are the most common three. It has fluorine in its chemical structure which makes this variety fluorescent. It is harder than hydroxylapatite though it is not as resistant to acids.

Hydroxyl apatite is a major component in the enamel in teeth. It is more resistant to acids than fluroapatite though it is not as hard. Chloroapatite Ca 5 PO 4 3Cl : Cholroapatite is the variety of apatite with chlorine in its structure. It is commonly coloured white, yellow or light pink.

Apatite Crystal, Unknown Locality. Bancroft, Ontario. Apatite is widely distributed in all classes of rock —igneous, sedimentary and metamorphic. Large, well-formed crystals are, for the most part, limited to metamorphic rocks. Although it can be found in many localities worldwide, some notable occurrences include:. Eichert, C. Rey, and M. View at: Google Scholar M. Handschin and W. View at: Google Scholar R.

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