apatite


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ap·a·tite

 (ăp′ə-tīt′)
n.
1. Any of a group of natural, variously colored calcium phosphate minerals containing fluorine, chlorine, or hydroxyl. These compounds form hexagonal crystals and are components of bones and teeth, are a source of phosphorus for plants, and are used in the manufacture of fertilizers.

[From Greek apatē, deceit (from its often being mistaken for other minerals).]

apatite

(ˈæpəˌtaɪt)
n
(Minerals) a pale green to purple mineral, found in igneous rocks and metamorphosed limestones. It is used in the manufacture of phosphorus, phosphates, and fertilizers. Composition: calcium fluorophosphate or calcium chlorophosphate. General formula: Ca5(PO4,CO3)3(F,OH,Cl). Crystal structure: hexagonal
[C19: from German Apatit, from Greek apatē deceit; from its misleading similarity to other minerals]

ap•a•tite

(ˈæp əˌtaɪt)

n.
a common mineral, calcium fluorophosphate, Ca5FP3O12, occurring in individual crystals and in masses and varying in color, formerly used in the manufacture of phosphate fertilizers.
[1795–1805; < Greek apát(ē) trickery, fraud, deceit + -ite1]

ap·a·tite

(ăp′ə-tīt′)
A usually green, transparent mineral consisting mainly of calcium phosphate. Apatite occurs as hexagonal crystals in igneous, metamorphic, and sedimentary rocks, and is used as a source of phosphate for making fertilizers. It is the mineral used to represent a hardness of 5 on the Mohs scale.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.apatite - a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus
atomic number 15, P, phosphorus - a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
atomic number 65, Tb, terbium - a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
atomic number 69, thulium, Tm - a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
fluorapatite - a form of apatite in which fluorine predominates over chlorine
Translations
References in periodicals archive ?
The composition provides an inhibition of bacterial adhesion to an apatite test plate analyzed by scanning electron microscopy.
Scales and spines of different morphological groups and variable histologies of the genus Nostolepis have been selected for this purpose in order to compare data from fossil apatite biomineral of different hard tissue structure and crystallinity, while avoiding any potential intertaxonomic bias.
143 thousand tonnes, apatite & phosphorite 100 thousand tonnes, dolomite 439 thousand tonnes, limestone 230 lakh tonnes, magnesite 24 thousand tonnes and diamond 2874 carat.
Non-metallic minerals are apatite, quartz, hornblende, actinolite, epidote, chlorite, Saussure, pomegranate.
The amount of water present in the moon may have been overestimated by scientists studying the mineral apatite, says a team of researchers led by Jeremy Boyce of the UCLA Department of Earth, Planetary, and Space Sciences.
SEM results showed as the amount of ascorbic acid and the time of floating increase, more apatite is formed in the structure.
In this paper, accessory minerals such as zircon, sphene and apatite are studied in Ghareh Gheshlagh area.
Washington, April 2 ( ANI ): Researchers have suggested that the amount of water present in the moon may have been overestimated by scientists studying the mineral apatite.
Specific topics include a freeze-cast nanostructured apatite scaffold obtained from the low temperature biomineralization of reactive calcium phosphates, preparing and characterizing micro-nanostructured anatasefilm, fish scales as a biocomposite of collagen and calcium salts, new titanium alloys potentially used for metal-ceramic application in medicine, the in vitro evaluation of new dental software for shade matching, and the radiographic analysis of bone remodeling around hydroxyapatite coated femoral stems.
Chunks of the mineral apatite offer clues to how long particular rocks have been exposed at the surface, revealing when canyons were carved.
In 2Q the company became sufficient in apatite concentrate and thus ceased purchasing this raw material from third parties.
The visit was undertaken to view the past apatite producing pits and to visualize the local infrastructure under the guidance of Steven Lauzier, P.