File:Apatite_on_Siderite_(13156440584).jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ178397· pop 66· linked from 543 articles

apatite

Also known as apatite root name series, apatites

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.

AI overview

Apatite is a group of phosphate minerals containing calcium and phosphate, with varieties distinguished by whether they contain hydroxyl, fluoride, or chloride ions in their crystal structure. These minerals are important industrial materials and also occur naturally in bones and teeth.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Mineral.name: Apatite group
Mineral.category: Phosphate mineral
Mineral.image: Apatite on Siderite (13156440584).jpg
Mineral.caption: Apatite (purple), on siderite, from Portugal
Mineral.formula: Ca5(PO4)3(F,Cl,OH)
Mineral.IMAsymbol: Ap
Mineral.strunz: 8.BN.05
Mineral.color: Transparent to translucent, usually green, less often colorless, yellow, blue to violet, pink, brown.
Mineral.habit: Tabular, prismatic crystals, massive, compact or granular
Mineral.system: Hexagonal
Mineral.class: Dipyramidal (6/m) (same H-M symbol)
Mineral.symmetry: P63/m (no. 176)
Mineral.cleavage: [0001] indistinct, [1010] indistinct
Mineral.fracture: Conchoidal to uneven
Mineral.mohs: 5 (defining mineral)
Mineral.luster: Vitreous to subresinous
Mineral.polish: Vitreous
Mineral.refractive: 1.634–1.638 (+0.012, −0.006)

via Wikipedia infobox

Research

33,373 papers

Apatite nanosheets inhibit initial smooth muscle cell proliferation by damaging cell membrane.Biomaterials advances · 2022Lin C, Liu F, Chen G et al.DOI: 10.1016/j.bioadv.2022.212852
[Apatite deposition diseases].ReviewRevue medicale suisse · 2007Gerster JC
Insight into biological apatite: physiochemical properties and preparation approaches.ReviewBioMed research international · 2013Liu Q, Huang S, Matinlinna JP et al.DOI: 10.1155/2013/929748
Functional role of inorganic trace elements in dentin apatite tissue-part III: Se, F, Ag, and B.ReviewJournal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2022Saghiri MA, Vakhnovetsky J, Vakhnovetsky A et al.DOI: 10.1016/j.jtemb.2022.126990
Functional role of inorganic trace elements in dentin apatite tissue-Part 1: Mg, Sr, Zn, and Fe.ReviewJournal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2022Saghiri MA, Vakhnovetsky J, Vakhnovetsky A et al.DOI: 10.1016/j.jtemb.2022.126932
Apatite formation: why it may not work as planned, and how to conclusively identify apatite compounds.ReviewBioMed research international · 2013Drouet CDOI: 10.1155/2013/490946
Modification of apatite materials for bone tissue engineering and drug delivery carriers.ReviewCurrent medicinal chemistry · 2007Matsumoto T, Okazaki M, Nakahira A et al.DOI: 10.2174/092986707782023208
Enhancement of apatite formation on Ti-50Zr alloy in simulated body environment.Dental materials journal · 2023Miyazaki T, Ota S, Nakamura JDOI: 10.4012/dmj.2022-226

via PubMed

Wikidata facts

Image: Apatit aus Renfrew in Kanada.jpg

Show 3 more facts

Commons category: Apatite
Mohs' hardness: 6
IMA Mineral Symbol: Ap

Sources (5)

via Wikidata · CC0

~10 min read

Article

10 sections

Contents

Geology
Uses
Gemology
Use as an ore mineral
Thermodynamics
Lunar science
Bio-leaching
Apatite group and supergroup
See also
References

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.