apatite chemical composition

Mineral Group: Apatite is in the Phosphate mineral group because it contains phosphorus. The apatite-group minerals of the general formula, M 10 (ZO 4) 6 X 2 (M = Ca, Sr, Pb, Na…, Z = P, As, Si, V…, and X = F, OH, Cl…), are remarkably tolerant to structural distortion and chemical substitution, and consequently are extremely diverse in composition (e.g., Kreidler and Hummel 1970; McConnell 1973; Roy et al. Fluorapatite. Natural mineral apatite has a chemical composition of Ca 5 (PO 4) 3 (OH, F, Cl) (Naray-Szabo, 1930; Pan and Fleet, 2002; White et al., 2005; Pasero et al., 2010). Chemical Formula. Introduction. A changing composition of the fluid during apatite replacement will lead to chemical zonation of the replaced apatite with the rim representing an early fluid as it is replaced first and the core being replaced last and therefore representing a later fluid (e.g., Kusebauch et al. Apatite is also one of few minerals produced and used by biological systems. The phosphate mineral is basically apatite, Ca 5 (PO 4) 3 F, with small but significant and variable substitutions—Na, Sr, U and Th for Ca, and CO 3 and SO 4 for PO 4. Phosphate rock. These colors are often so vivid that it has frequently been cut as a gemstone. This is because it’s chemical composition almost imitates the chemical composition of many other stones. Hydroxyleapatite is the major mineral component of tooth and bone (Wopenka and Pasteris, 2005). Chemical Composition of Apatite. These are displayed through measurements of light dispersion, hardness, density or specific gravity, cleavage, fracture, tenacity, refractive index and luster. The starting materials come from nature--the mineral apatite is an extremely important source of the chemical elements comprising bone. Retrieval of standard chemical formulas for minerals from chemical analyses is an exercise in (a) conversion of units of quantity and (b) normalization of sums to match the commonly used formula conventions. This page provides information and tools for the calculation of minerals formulas from chemical analyses. The rocks are mostly pale colored, grey or pink, and in general appearance they are not unlike granites, but dark green varieties are also known. The chemical composition is Ca 5 (ClF) (PO 4 ) 3 . Apatite Specifications. We have made detailed analyses of the spatial distribution of the macroparticles (MP) and of the Ca/P ratio in the coatings. A potential important application of these results is to use the chemical composition of apatite to determine the provenance of sediments. /Apatite/. Apatite and the Chakras. The most beautiful Apatite stones are usually teal, yellow, or green in color. Apatite is calcium phosphate combined with fluorine, chlorine or hydroxyl. The quantification of the different parameters influencing He diffusion in apatite is an important issue for the interpretation of (U-Th)/He thermochronometric ages. The bones and teeth of most animals, including humans, are composed of calcium phosphate, which is the same material as Apatite. Chemical Formula: Ca5 (PO4)3 (OH,F,Cl) Composition: Molecular Weight = 509.12 gm. Biological apatite is an inorganic calcium phosphate salt in apatite form and nano size with a biological derivation. Apatite is a Mineral comprised of phosphate (PO 4 3−), arsenate (AsO 4 3−), vanadate (VO 4 3−), chlorine (Cl −), fluorine, (F −), and hydroxide (OH −) giving Apatite its chemical formula; Ca 5 (P0 4)3 (F,CI,OH). Hydrogen 0.07 % H 0.59 % H 2 O. Chlorine 2.32 % Cl 2.32 % Cl. Key issues include understanding the role of chemical composition and the mechanism modifying diffusivity by radiation damage, both requiring a realistic description at the atomic level. Hydroxylapatite (Ca5 (OH) (PO4)3): ACTIVE. Synonyms. The particles, prepared using one-step wet chemical method, were spherical in shape with diameters of 15.8 ± 7.4 nm and the chemical composition … Apatite is found in Myanmar (Burma), Brazil, India, Kenya, Madagascar, Norway, Sri Lanka, South Africa, Mexico, Canada and the United States. Farm Chemicals Handbook 1999. Fluorapatite (Ca5F (PO4)3) The specific gravity varies between 3.16 and 3.22. Chemical composition of apatite as a tool for modeling composite-pluton evolution using Polytopic Vector Analysis (PVA) Ewa Słaby Information on the physical and chemical properties of the subcontinental lithospheric mantle can be obtained by the study of mantle rocks outcropped on the surface mostly as xenoliths or massive peridotite bodies. Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. Strontium 38.00 % Sr 44.94 % SrO. Principles of Formula Calculation. Apatite is represented by F-apatite and it contains exceptionally high concentration of SrO. There are three minerals that actually contribute to apatite, which is the reason for the varied colors and shades of this stone. Apatite has several different crystallographic sites where atomic exchanges can occur, and many different elements with different ionic charges can be accommodated in those positions [8,9]. (4.5 wt % on average) and increased amounts of rare earth elements (REEs; up to 8891 ppm). Calcium 39.36 % Ca 55.07 % CaO. It is a brittle material. Apatite chemical composition, determined by electron microprobe and laser-ablation inductively coupled plasma mass spectrometry, as a probe into granite petrogenesis Sha, Lian-Kun; Chappell, Bruce W. Abstract. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite Anatomical Therapeutic Chemical codes: A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. A Chemical Analysis of Apatite and Zircon Composition from Four Minnesotan Ordovician K-Bentonite Deposits. answers 1. 2015a). Apatite is also in the True Phosphates group because it has one or more metallic elements. Phosphorus 14.66 % P 33.58 % P 2 O 5. For this reason it has come to symbolize animal conservation. Apatite has a special affinity with the animal kingdom. We have studied the effect of pulsed laser ablation conditions on the deposition of biocompatible apatite coatings on Ti and Ti–6Al–4V alloy at room temperature. apatite. The results show that frozen powdered samples have significantly better-preserved organic matter and lower concentrations of B-type carbonates, but higher concentrations of A-type carbonates and stoichiometric apatite. Apatite is a group of phosphate minerals which includes: fluorapatite, chlorapatite, hydroxylapatite, carbonate-rich apatite and francolite. Jeff Novak, Dr. Mark Schmitz. Apatite chemical composition ... What do you do when quoting long sections of material (e. g., of more than 40 words): select one: a. set the quote off with double quotation marks. Ca5FO12P3. Apatite is represented by F-apatite and it contains exceptionally high concentration of SrO. OH ). The physico-chemical transformations are related to the structure of the bone mineral apatite and exhibits similar characteristics to that of synthetic … Because of differences in solubility due to urine pH, calcium phosphate is not found mixed with uric acid. K-Bentonite Distinction. Apatite Composition. (These biological Apatites are almost exclusively the Hydroxylapatite type.) The spectra obtained were processed and analyzed to determine and compare the chemical composition of both types of samples. All apatite samples were investigated for their chemical composition using EPMA with two different electron beam current settings – 5 nA (Table 2) and 40 nA (Table 3) that enabled us to obtain high-quality information on the mass fractions of both volatile (F, Cl) and trace elements, respectively. Khibiny, one of the largest of the world’s peralkaline intrusions, hosts gigantic apatite deposits. Laboratory Chemical Safety Summary (LCSS) Datasheet. Its chemical composition is largely made up of phosphate, the same material found in the teeth, tusks, bones, horns and antlers of various animals around the world. Khibiny, one of the largest of the world’s peralkaline intrusions, hosts gigantic apatite deposits. Phosphorus 18.25 % P 41.82 % P 2 O 5. It belongs to the hexagonal sys– tem, as it takes the forms of prisms and thick tablets. Apatite is the most common phosphate mineral, and is the main source of the phosphorus required by plants. It is of the fifth degree of hardness. EPMA and LA-ICP-MS data are presented in Tables 1 and 2. Chemical Formula: (Sr,Ca)5 (PO4)3 (F,OH) Composition: Molecular Weight = 634.05 gm. Cathodoluminescence Imagery. It is also the main inorganic component of biological hard tissues such as bones and teeth of vertebrates. 1 3 Contrib Mineral Petrol (2015) 170:34 DOI 10.1007/s00410-015-1188-6 ORIGINAL PAPER Apatite as probe for the halogen composition of metamorphic Calcium 14.22 % Ca 19.90 % CaO. It is usually green in color, but can be yellow, brown, blue, purple, pink, or colorless. Rare metals not associated with apatite are associated principally with the organic-matter component of the rocks. No EPMA data from Kangankunde were collected in this study, and data from Wall and Mariano (1996) are used for comparison. Apatite habit, frequency, cathodoluminescence, and chemical composition fluctuate systematically within the ARA pegmatite from the outer to the inner zones. UNII-M4CM1H238J. The chemical composition of Apatite is mostly phosphate the same material that makes up the teeth, bones, horns, tusks, antlers and hooves of various animals around the world including us so this gemstone has an affinity with animal conservation. Nepheline syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. (4.5 wt % on average) and increased amounts of rare earth elements (REEs; up to 8891 ppm). A well-known mineral component to trabecular bone is hydroxyapatite, which can be present in many forms due to ionic substitution, thus altering chemical composition. Unfortunately, very little is known about the chemical changes to bone apatite following IOFH. The term "apatite" is often used for fluorapatite, the most common of these minerals. In other words, the chemical composition of apatite in bone can be varied, but not with the same randomness and flexibility as the chemical This group includes As, Ag, Cd, Cr, Cu, Mo, Ni, Sb, Se, V and Zn. Molecular Formula. Apatite of distinctive Mn, Cl, and Fe contents occurs in the border zone, wall zone, and core-margin zone; the intervening intermediate zones and main core zones do not contain any apatite. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale. Apatite is found in igneous, metamorphic and sedimentary rocks. DEPARTMENT OF GEOSCIENCES, BOISE STATE UNIVERSITY. General Apatite- (SrOH) Information. Consequently, biological apatite has a wide application in dentistry and orthopedics by using as dental fillers and bone substitutes for bone reconstruction and regeneration. Apatite Specifications include its chemical, physical and optical properties of natural gemstones. This group also includes fluorapatite, chlorapatite, hydroxylapatite, carbonate-rich apatite, and francolite. Chemical composition. When you eat a varied diet, you make these and other chemical components available to your body, which is "programmed" to grow bones and all your other organs. 1978; Elliott 1994). Figure 5. Apatite Physical Properties. Magmatic Differentiation. It is best known for its use as an index mineral with a hardness of 5 in the Mohs Hardness Scale. What is Apatite? Hydrogen 0.08 % H 0.71 % H 2 O. Thus, a greenhouse experiment was conducted to assess the fertilizing effect of synthetic apatite nanoparticles on soybean (Glycine max). Because granites and their volcanic equivalents are the most abundant igneous rocks in orogenic belts, weathering products of these granites form important sources for clastic sediments. Hydroxyapatite (HAp) is a calcium phosphate similar to the human hard tissues in morphology and composition 1.Particularly, it has a hexagonal structure 2, 3 and a stoichiometric Ca/P ratio of 1.67, which is identical to bone apatite 2, 4, 5.. An important characteristic of hydroxyapatite is its stability when compared to other calcium phosphates. The two forms of calcium phosphate include apatite (sometimes reported as carbonate apatite), which is the crystal type found in bone, or calcium hydrogen phosphate (brushite); the frequency of apatite is much greater than brushite. Phonolite is the fine-grained extrusive equivalent. Apatite in teal color resembles the color of the sea, which is the most popular among buyers and collectors. General Apatite Information. 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