How To Use Apatite In A Sentence
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The main constituent phases of these rocks are plagioclase, hornblende, pyroxene, quartz and K-feldspar, and accessory phases include magnetite, sphene, zircon and apatite.
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Some calcareous veins contain epidote, titanite and apatite.
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How about apatite, apophyllite, axinite, chlorite, hypersthene, scapolite, serpentine, tantalite, and wolframite?
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Yttria stabilized zirconia (YSZ) reinforced hydroxyapatite (HA) bio-composite coatings on polyimide (PI) substrate had been developed by R.
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AIM : To explore a simple fixation of hydroxyapatite ( HA ) artificial eye mount of auto sclera.
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The next few pockets yielded only dark blue apatite and clear to smoky to pale citrine quartz.
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The mineral assemblage comprises quartz, K-feldspar, albitic plagioclase, white mica, apatite, tourmaline and garnet.
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Bone consists of collagen banded fibrils sprinkled with tiny crystals of the mineral hydroxyapatite, which is basically calcium phosphate.
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Here, we can observe dentine tubules around which the apatite has been partially resorbed.
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The dominant non-clay mineral composition of the coarse fraction consists of biotite, quartz, and sanidine with lesser amounts of apatite and zircon.
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It's like criticizing the Roman Catholic belief because so many priests have an unhealthy apatite for young boys 'buttocks.
Darwin Strips Reality of Purpose?
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Plagioclase, microcline and quartz are the predominating minerals, while biotite, titanite, epidote, apatite, zircon and garnet are present in smaller quantities.
The Long Labrador Trail
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In 2001, the "coralline hydroxyapatite implant materials innovation industrialization" were "National Innovation Fund for small and medium-sized technology-based" support.
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In contrast with the well-known, somewhat similar mine at Panasqueira, Portugal, it is remarkable that at Yaogangxian fluorite is very common, and apatite is rather rare.
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The sample is composed of K-feldspar, plagioclase and quartz with accessory apatite, magnetite, titanite, zircon and secondary epidote.
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Large titanite euhedra are abundant along with apatite and zircon, with allanite and epidote less so.
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Hollow hydroxyapatite (HAP) microspheres with pores on their surfaces were prepared by in situ conversion reaction of Li-Ca-B glass in phosphate solution.
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Some manufacturers also have coated their implants with a calcium phosphate-based material called calcium hydroxyapatite.
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The colours came from mixtures of haematite with other minerals, and antler apatite crystals were also noted.
Times, Sunday Times
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His team took a detailed look at a mineral within the basalt called apatite using an ion microprobe that can analyze grains much smaller than the width of a human hair.
Christian Science Monitor | All Stories
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On the large scale, mechanical arrangements are employed for mixing the materials, so as to economise labour, and mineral phosphates, such as apatite, can then be used with advantage.
Elements of Agricultural Chemistry
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In 2001, the "coralline hydroxyapatite implant materials innovation industrialization" were "National Innovation Fund for small and medium-sized technology-based" support.
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Magnetite, apatite, titanite and zircon make up the accessory minerals.
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Bionic acicular nano hydroxyapatite(n HA) was used to make composites with medical grade polyamide (Poly hexamethylene adipamide) by solution blend.
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Her LUXE designs are filled with precious and semi-precious gemstones such as apatite, iolite and hessonite delicately clustered with emerald, ruby and topaz.
PR.com Press Releases
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It is a reddish brown sandstone formed by detrital quartz, plagioclase, feldspar and muscovite, with subordinate apatite, zircon and opaque minerals.
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Sillimanite, cordierite, apatite, monazite and zircon are also present.
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According to Rose, apatite is made up of three molecules of tribasic calcium phosphate (Ca (PO_4) _2), combined with one molecule of calcium fluoride (Ca F_2) or one molecule of calcium chloride (CaCl_2) respectively.
Manures and the principles of manuring
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The abundance of these elements in the parental magma leads to the formation of less-common minerals such as apatite, beryl, topaz, amblygonite, lepidolite, spodumene tantalite, columbite, monazite, zircon, and uraninite.
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The mineral assemblage comprises quartz, K-feldspar, albitic plagioclase, white mica, apatite, tourmaline and garnet.
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The unusual age zonation is probably linked to the mineralogical association of monazite and apatite during metamorphic reactions.
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Then, the hydroxylapatite crystals of enamel demineralize, allowing for greater bacterial invasion deeper into the tooth.
Top Stories - Google News
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The most familiar apatite derivative is hydroxyapatite, the bulk mineral constituent of bone.
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The bioapatite crystallites are small and elongated along the crystallographic c axis, and they grow as bone maturation proceeds.
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Some calcareous veins contain epidote, titanite and apatite.
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Bionic acicular nano hydroxyapatite(n HA) was used to make composites with medical grade polyamide (Poly hexamethylene adipamide) by solution blend.
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The occurrence of low-volatile coal in certain coalfields in India is attributed to the carbonization of coal seams by the intrusion of mica lamprophyre which is a mica-rich ultrabasic rock containing altered olivine, calcite (or dolomite), bronze-coloured mica and apatite.
4.1 Geological investigations
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rock phosphate," a variety of apatite which is mainly phosphate of lime.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Other accessory minerals are apatite, zircon, monazite, huttonite and rare xenotime, uraninite and betafite.
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Inclusions of quartz, tourmaline, apatite, and muscovite crystals have been described.
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Sillimanite, cordierite, apatite, monazite and zircon are also present.
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Large titanite euhedra are abundant along with apatite and zircon, with allanite and epidote less so.
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And one of the properties of [hydroxy] apatite is that you can have supersaturated solutions of calcium and phosphate that can be maintained quite stably.
Bits and Pieces of an RNA World
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Accessory minerals are apatite, rutile and zircon.
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Optically, purple apatite commonly shows slight bluish to reddish pleochroism.
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AIM : To explore a simple fixation of hydroxyapatite ( HA ) artificial eye mount of auto sclera.
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They typically comprise early olivine and plagioclase, ophitically enclosed by augite, with opaque oxides and apatite.
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Granite sample RHGI can be modelled by continuing this felsic scheme, for example with 22% fractionation of oligoclase, amphibole, biotite and the usual minor apatite and titanite.
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Objective To study clinical effectiveness and safety of non - sclera wrapped artificial eye seat of hydroxyapatite ( NSWAS - HA ) .
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Magnetite, apatite, titanite and zircon make up the accessory minerals.
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In addition to forming fluorapatite crystals like other fluorides, stannous fluoride also has a toxic effect on acid-producing mouth bacteria, says biochemist Matthew J. Doyle, director of global research and development for P & G's oral-care division.
The Acid Test for Enamel-Saving Toothpastes
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How about apatite, apophyllite, axinite, chlorite, hypersthene, scapolite, serpentine, tantalite, and wolframite?
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Professor George Rossman, of the California Institute of Technology, said: "If you heat up the apatite, the hydroxyl ions will" decompose "and come out as water.
Telegraph.co.uk: news, business, sport, the Daily Telegraph newspaper, Sunday Telegraph
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Thus it is with some surprise that we report for the first time the discovery of well-formed crystals of apatite in Ohio.
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Extreme cases are found in mineral groups such as apatite, amphibole, pyroxene, feldspar, and tourmaline.
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Presumably, this water is tightly bound to the organic matrix and the mineral phase and diffuses along the micropores that are embedded in the collagen and hydroxy-apatite matrix.
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Calcium links up with phosphates to make the chemical "apatite" (calcium phosphate), one of the hardest chemicals we know, which is what makes bones hard and stony, and tough.
- The Naked Scientists Naked Science Radio Show PODCAST - Stripping Down Science
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Some calcareous veins contain epidote, titanite and apatite.
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In all specimens the groundmass is peppered with opaque minerals, rare apatite laths and rare euhedral blade-like calcite.
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The early stages of mineralization of bone tissue proceed through the formation and growth of bioapatite crystallites from a precursor material.
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The intermediate zone consists of massive lilac-gray sodalite with inclusions of nepheline, dark green aegirine, and pale green fluorapatite.
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Objective: To observe the mutual adsorption of hydroxyapatite(HA) particles and the sealing effect of HA microparticles on dentinal tubules.
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Bone ash (made from calcining animal bones), apatite, wavellite, vivianite.
13. Glaze oxides
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The observation of Scanning Electronic Microscope (SEM) on a shankbone shows that the bone is a kind of natural bioceramic composite consisting of hydroxyapatite and collagen protein.
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Plagioclase, microcline and quartz are the predominating minerals, while biotite, titanite, epidote, apatite, zircon and garnet are present in smaller quantities.
The Long Labrador Trail
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The main constituent phases of these rocks are plagioclase, hornblende, pyroxene, quartz and K-feldspar, and accessory phases include magnetite, sphene, zircon and apatite.
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These compounds are incorporated into hydroxyapatite crystals that are deposited in an osteoid matrix during new bone formation.
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Apatite is the most common phosphate mineral found in granitic pegmatites.
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President Obama himself has faced a stinging rebuke from congress for his comments about lawmakers '"obsession" with the war, and the Out of Afghanistan Caucus continues to chip away at what little apatite for war remains in congress.
Josh Mull: All politics is local: Al-Qa'eda and the Afghanistan War
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Others are used for making fertilizers (e.g. apatite for phosphate and sylvite for potassium).
AP Environmental Science Chapter 10- Minerals
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The microgranite has a felsitic groundmass containing microphenocrysts of albite and orthoclase along with phenocrysts of corroded quartz and sporadic dihedral garnet; zircon and apatite are conspicuous accessory minerals.
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Fluorine never occurs as an element in nature, but is found in minerals such as fluorspar, fluorapatite, and cryolite.
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The claims are often based on the presence of fluoride, which scientists say combines with minerals in your mouth to create a crystal called fluorapatite on the surface of your teeth.
The Acid Test for Enamel-Saving Toothpastes
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Objective:To observe the complication and effect of intraorbital implantation of hydroxyapatite(HA)sphere in anophthalmos.
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Methods The human bone marrow mesenchymal stem cells, which adhered to freeze dried cancellous and hydroxyapatite, were implanted in the nude mice subcutaneously.
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The main constituent phases of these rocks are plagioclase, hornblende, pyroxene, quartz and K-feldspar, and accessory phases include magnetite, sphene, zircon and apatite.
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Objective: To compare the the effect of coralline and hydroxyapatite (HA) on bone formation in immediate bone implantation.
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Concentrations of the REE's have been identified within phosphate minerals from the project such as carbonated monazite, dahllite, apatite and fluorapatite genetically associated with the alkalic sill complex.
Marketwire - Breaking News Releases
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Another apatite researcher, Francis McCubbin of the University of New Mexico, points out that one person's "bone-dry" could be another person's "relatively damp.
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The next few pockets yielded only dark blue apatite and clear to smoky to pale citrine quartz.
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REE-enriched minerals identified in petrographic studies include strontium-REE-apatite, britholite, allanite, and REE mineral inclusions in andradite garnet.
Undefined
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The extent of processing the so-called apatite concentrate produced by your feedstock suppliers is not being regulated in any way.
RIA Novosti
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Objective: To assess the clinical effect of hydroxyapatite as an intra-orbital tamponade to be secondary implanted.
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The rock consists of plagioclase, K-feldspar, quartz, clinopyroxene and biotite, with abundant apatite, and ilmenite.
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June saw them undertaking the long journey to the Glenover phosphate deposit in the Northern Province to look for apatite, monazite, pyrite, magnetite, calcite, anatase, and rutile.
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Conclusion The absorbable coral hydroxyapatite is a good bone tissue engineering scaffold.
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Her LUXE designs are filled with precious and semi-precious gemstones such as apatite, iolite and hessonite delicately clustered with emerald, ruby and topaz.
PR.com Press Releases
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The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
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True, but names such as apatite, apophyllite, chlorite, serpentine, and tantalite are very common names that appear frequently in the world of a beginning collector, so their absence from references can only lead to frustration.
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Concentrations of the REE's have been identified within phosphate minerals from the project such as carbonated monazite, dahllite, apatite and fluorapatite genetically associated with the alkalic sill complex.
Marketwire - Breaking News Releases
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The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
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The rock turned out to be an apatite-bearing carbonatite.
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Garnets form large idiomorphic and sub-idiomorphic grains; the majority contain inclusions of omphacite, ilmenite, rutile, zircon, apatite and quartz.
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The district also produced many other mineral species in attractive specimens, including honey-golden barite, fluorapatite, gold, polybasite, rhodochrosite, and tetrahedrite.
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Other accessory minerals are apatite, zircon, monazite, huttonite and rare xenotime, uraninite and betafite.
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How about apatite, apophyllite, axinite, chlorite, hypersthene, scapolite, serpentine, tantalite, and wolframite?
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As diagenetic growth of authigenic apatite continues within a bone, the isotopic composition of the whole bone will trend towards a purely diagenetic signal.
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Thus the sulphate constitutes the minerals anhydrite, alabaster, gypsum, and selenite; the carbonate occurs dissolved in most natural waters and as the minerals chalk, marble, calcite, aragonite; also in the double carbonates such as dolomite, bromlite, barytocalcite; the fluoride as fluorspar; the fluophosphate constitutes the mineral apatite; while all the more important mineral silicates contain a proportion of this element.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
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Monazite GS - 8-2, a sub - to anhedral grain, is c.70 m × 100 m, located between two apatite grains.
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Most common apatites are fluorine rich; however, they may contain appreciable amounts of chlorine.
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In view of the elastic modulus of hydroxyapatite being at least three orders of magnitude larger than that of collagen, this seems to be quite natural.
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The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
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They contain olivine, clinopyroxene, plagioclase, analcite, ulvospinel and apatite + / - biotite + / - calcite.
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Major mineral phases include plagioclase and pyroxene, with small amounts of opaque minerals, olivine, apatite, and sometimes biotite.
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Objective: To assess the clinical effect of hydroxyapatite as an intra-orbital tamponade to be secondary implanted.
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Hydroxyapatite is a crystalline form of calcium phosphate most frequently used in antibody purification.
The Scientist
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Bone ash (made from calcining animal bones), apatite, wavellite, vivianite.
13. Glaze oxides
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Two small dumps are exposed, affording an opportunity to collect some of the attractive microcrystals of rhodochrosite and crystals of apatite, gypsum, barite, goethite, marcasite, calcite, and chalcocite that are found there.
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The mineral assemblage comprises quartz, K-feldspar, albitic plagioclase, white mica, apatite, tourmaline and garnet.
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In addition to forming fluorapatite crystals like other fluorides, stannous fluoride also has a toxic effect on acid-producing mouth bacteria, says biochemist Matthew J. Doyle, director of global research and development for P & G's oral-care division.
The Acid Test for Enamel-Saving Toothpastes
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Ye et al. recently reported abundant exsolutions of clinopyroxene, rutile and apatite in garnet of a Yangkou eclogite sample.
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A less popular ‘filler ‘for wrinkles is made from calcium hydroxyapatite, a substance used to replace missing bone.’
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Accessory chlorite, magnetite or ilmenite, titanite, apatite, partly chloritized biotite, epidote, pyrite and sometimes cummingtonite, are present.