Definitions for APATITE
ˈæp əˌtaɪtap·atite

Princeton's WordNetRate this definition:0.0 / 0 votes

1. apatitenoun

   a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus

WiktionaryRate this definition:0.0 / 0 votes

1. apatitenoun

   A calcium fluoride phosphate of variable composition, sometimes used in the manufacture of fertilizer.

WikipediaRate this definition:0.0 / 0 votes

1. Apatite

   Apatite is a group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH−, F− and Cl− ion, respectively, in the crystal. The formula of the admixture of the three most common endmembers is written as Ca10(PO4)6(OH,F,Cl)2, and the crystal unit cell formulae of the individual minerals are written as Ca10(PO4)6(OH)2, Ca10(PO4)6F2 and Ca10(PO4)6Cl2. The mineral was named apatite by the German geologist Abraham Gottlob Werner in 1786, although the specific mineral he had described was reclassified as fluorapatite in 1860 by the German mineralogist Karl Friedrich August Rammelsberg. Apatite is often mistaken for other minerals. This tendency is reflected in the mineral's name, which is derived from the Greek word ἀπατάω (apatáō), which means to deceive.

ChatGPTRate this definition:0.0 / 0 votes

1. apatite

   Apatite is a group of phosphate minerals that is often used as a natural index mineral, indicating the pressure-temperature conditions of metamorphic and igneous rocks. It is also a primary source of phosphorus for use in fertilizer and is commonly used in the manufacture of phosphoric acid. Apatite is usually green, but can also be blue, violet, yellow, or brown. The mineral is often identified by its hexagonal crystals and its hardness on the Mohs scale ranges from 5 to 5.5.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Apatitenoun

   native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent

2. Etymology: [Gr. deceit, fr. to deceive; it having been often mistaken for other minerals.]

FreebaseRate this definition:0.0 / 0 votes

1. Apatite

   Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, named for high concentrations of OH−, F−, Cl− or ions, respectively, in the crystal. The formula of the admixture of the four most common endmembers is written as Ca10(PO4)6(OH,F,Cl)2, and the crystal unit cell formulae of the individual minerals are written as Ca10(PO4)6(OH)2, Ca10(PO4)6(F)2 and Ca10(PO4)6(Cl)2. Apatite is one of a few minerals produced and used by biological micro-environmental systems. Apatite is the defining mineral for 5 on the Mohs scale. Hydroxyapatite, also known as hydroxylapatite, is the major component of tooth enamel and bone mineral. A relatively rare form of apatite in which most of the OH groups are absent and containing many carbonate and acid phosphate substitutions is a large component of bone material. Fluorapatite is more resistant to acid attack than is hydroxyapatite; in the mid-20th century, it was discovered that communities whose water supply naturally contained fluorine had lower rates of dental caries. Fluoridated water allows exchange in the teeth of fluoride ions for hydroxyl groups in apatite. Similarly, toothpaste typically contains a source of fluoride anions. Too much fluoride results in dental fluorosis and/or skeletal fluorosis.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Apatite

   ap′a-tīt, n. a phosphate of lime of great variety of colour. [Gr. apatē, deceit, its form and colour being deceptive.]

Matched Categories

1. • Mineral

How to pronounce APATITE?

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Numerology

1. Chaldean Numerology

   The numerical value of APATITE in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of APATITE in Pythagorean Numerology is: 9

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