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apatite and phosphorus mining

Apatite Wikipedia

OverviewGeologyUsesThermodynamicsLunar scienceBio-leachingSee also

Apatite is a group of phosphate minerals, usually referring to hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH ,F and Cl ions, 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 Wget price

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Apatite is a group of phosphate minerals, usually referring to hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH ,F and Cl ions, 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 Wernerin 1786, although the get price

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Phosphate mining in the United States Wikipedia

OverviewGeologyUseGeographyHistoryEnvironmental impactsByproductsInternational trade

Although some igneous rocks have economic grades of phosphate, no igneous phosphate rock is mined in the US. Small amounts of phosphate were mined from igneous apatite deposits in Virginia, New Jersey, and New York. But since 1948, all phosphate deposits mined in the US have been sedimentary deposits. However, a small amount of phosphate was produced in the 1970s, as a byproduct of iron mining in Missouri. get price

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APATITE AND ROCK PHOSPHATE Indian Minerals Yearbook

MINING AND MARKETING Apatite mining is confined to Visakhapatnam district, Andhra Pradesh and in Purulia district, West Bengal. In apatite mine of Andhra Phosphate (Pvt.) Ltd, manual mining was carried out by developing benches along the strike length, following the dip of ore body, and by lateral developments of levels along the strike. A mineralget price

Phosphate vs Apatite What's the difference? WikiDiff

As nouns the difference between phosphate and apatite is that phosphate is (chemistry) any salt or ester of phosphoric acid while apatite is (mineral) a calcium fluoride phosphate of variable composition, sometimes used in the manufacture of fertilizer. As a verb phosphate is to treat or coat with a get price

Apatite: Its uses as a mineral and gemstone

PropertiesFormationGeologyCauseUsesProductionPreparationAppearanceApatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale. Specimens with excellent clarity and color are sometimes cuSee more on geology

Environmental impact of phosphate mining and beneficiation

phosphate mining industries. Most of the impacts are being reflected in the form of changes to local hydrology, water contamination, water consumption, air pollution and human risk.8,9 Environmental impact of phosphate mining and beneficiation which is directly or indirectly related to water resources is the subject of this review. The reviewget price

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phosphorus mining apatite elplaninicial.cl

phosphorous content of apatite marcopower.in. apatite and phosphorus mining crusherasia. apatite mining process in srilanka apatite and,apatite, the phosphorus,Many farms in the United States benefit from Inquire Now; apatite mining environment hoteleldoradobenin. Apatite And Phosphorus Mining Gaur Yamuna City.get price

How is apatite mined? Yahoo Answers

Dec 21, 2011 Phosphate rock consists of the mineral apatite, an impure tricalcium phosphate, mixed with clay and other elements. In 2000, nine companies operated seventeen phosphate rock mines in the U.S. Florida is the main source of phosphate rock in the U.S. It supplies 25 percent of the world and 75 percent of the U.S. demand for phosphate.get price

Apatite, Blue Moonrise Crystals

Mining: Apatite is most often mined in massive bedded marine deposits which are mined for phosphorus to be used in fertilizers. Because Apatite occasionally contains ‘rare earth minerals’, it may also be specifically mined as ore for these rare elements, since, unlike most rare earth ores, Apatite is non-radioactive and does not pose anget price

Mining Funda: Apatite, Phosphorite and Phosphate Rock

Apatite, Phosphorite and Phosphate Rock Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals.get price

Geochemistry of Uranium in Apatite and Phosphorite

Uranium content of representative clastic apatite from the land-pebble phosphate field, Florida. ____ _____ 67 Iron and uranium content, in weight percent, of representative apatites from the Bone Valley formation, Florida. 69 The recovery, in weight percent, of uranium (IV) from 1.5 M phosphoric acid solutions of natural and syntheticget price

Mining Flotation of Apatite and Phosphate Ore Nouryon

Phosphate ore is the most important source of phosphorus in fertilizers. To supply the phosphoric acid plant with phosphate, a high grade of phosphorus is essential, as well as reduced levels of impurities such as magnesium, iron and aluminum oxides. Flotation is one of the key beneficiation methods. As ores become more complex, the need forget price

Acid Alcohol Leaching of Apatite

Typical processing involves mining the ore and beneficiating through sizing and flotation to produce a “phosphate rock” concentrate containing over 29 pct P2O5. This concentrate is ground to 90 pct minus 75 µm and leached to dissolve the phosphate. Apatite, Ca5(PO4)3(F, Cl, ½CO3, OH), is the primary phosphate mineral in the phosphate rock.get price

Mount Apatite Park, Auburn, Maine

Mount Apatite Park, Auburn, Maine Significance The Mt. Apatite quarries were important producers of commercial feldspar in the early 1900's. They played a prominent part in Maine's mining history. During the course of this mining activity, rare minerals and colorful crystals of green and pinkget price

Mining Nouryon High-Performance Mineral Processing

The flotation collector’s performance plays a pivotal role in ensuring optimal interaction of all components in the process. Our Mining solutions focus specifically on the flotation of calcite, iron ore, potash, phosphate and apatite.get price

Mineral Resource of the Month: Phosphate Rock EARTH Magazine

As a mineral resource, “phosphate rock” is defined as unprocessed ore and processed concentrates that contain some form of apatite, a group of calcium phosphate minerals that is the primary source for phosphorus in phosphate fertilizers, which are vital to agriculture.get price

Which Minerals Include Phosphate? ThoughtCo

Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F. Other members of the apatite group have chlorine or hydroxyl that take the place of the fluorine; silicon, arsenic or vanadium replace the phosphorus (and carbonate replace the phosphate group); and strontium, lead, and other elements substitute for theget price

A Woman with Recurrent Calcium Phosphate Kidney Stones

Kidney stones composed predominantly (50% or more) of calcium phosphate constitute up to 10% of all stones and 15%–20% of calcium stones, 80% of which are composed of calcium oxalate. Calcium phosphate is a minor component of up to 30% of calcium oxalate stones as well. The cause of calcium phosphate stones is often obscure but most often related to a high urine pH.get price

apatite mining and processing Hitlers Hollywood

Apatite Mining Florida Apatite Mining Phosphate Mining in USA and for radar monitoring of the entire pit at the Yara Siilinjärvi apatite mine in Finland Contact Supplier Apatite Mining And Processing Apatite Wikipedia Apatity Russia a site of apatite mines and processing faciliti The primary use of apatite is in the manufacture of .get price

Phosphate Fertilizer an overview ScienceDirect Topics

Phosphate fertilisers are made from phosphorites which are either of sedimentary or to a lesser extent of magmatic origin. The most important mineral is apatite, Ca 5 [(PO 4) 3 (OH,F,Cl)]. Mining of sedimentary phosphate rock is accomplished mainly by strip mining.get price

Microbial release of apatite- and goethite-bound phosphate

Desorption of phosphate from goethite was less effective than the solubilization of phosphate from hydroxyapatite. We found that the net P solubilization from hydroxyapatite was driven by the microbial production of low molecular weight organic acids (LMWOAs), such as D-gluconic and 2-keto-D-gluconic acids, and differed among the microbialget price

Apatite Precious Stones Mining List

Apatite is a mineral and commonly known as a type of phosphorus chemical which is very much required in the process of photosynthesis. It is also a gemstone that is transparent and very rarely found. Most of the consumers in the jewellery world still do not know the existence of such a stone and so it is rarely used to beautify a piece ofget price

(PDF) Environmental impact of phosphate mining and

Apatite is commonly very insoluble in its original . state as extracted from the earth and is practically unavailable as a . Phosphate mining may take place in Sokli in the future, and theget price

LKAB develops new technology for producing strategic

The process can handle both types of apatite produced by LKAB in Kiruna and Malmberget and, in addition to phosphorus, it can extract rare earth metals. The process separates the arsenic and fluoride contained in the apatite; i.e., theses substances do not end up in the phosphorus fertiliser. Phosphorus There is a shortage of phosphorus.get price

Which Minerals Include Phosphate? ThoughtCo

Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F. Other members of the apatite group have chlorine or hydroxyl that take the place of the fluorine; silicon, arsenic or vanadium replace the phosphorus (and carbonate replace the phosphate group); and strontium, lead, and other elements substitute for theget price

A Woman with Recurrent Calcium Phosphate Kidney Stones

Kidney stones composed predominantly (50% or more) of calcium phosphate constitute up to 10% of all stones and 15%–20% of calcium stones, 80% of which are composed of calcium oxalate. Calcium phosphate is a minor component of up to 30% of calcium oxalate stones as well. The cause of calcium phosphate stones is often obscure but most often related to a high urine pH.get price

apatite mining and processing Hitlers Hollywood

Apatite Mining Florida Apatite Mining Phosphate Mining in USA and for radar monitoring of the entire pit at the Yara Siilinjärvi apatite mine in Finland Contact Supplier Apatite Mining And Processing Apatite Wikipedia Apatity Russia a site of apatite mines and processing faciliti The primary use of apatite is in the manufacture of .get price

Phosphate Fertilizer an overview ScienceDirect Topics

Phosphate fertilisers are made from phosphorites which are either of sedimentary or to a lesser extent of magmatic origin. The most important mineral is apatite, Ca 5 [(PO 4) 3 (OH,F,Cl)]. Mining of sedimentary phosphate rock is accomplished mainly by strip mining.get price

Microbial release of apatite- and goethite-bound phosphate

Microbial release of apatite- and goethite-bound phosphate in acidic forest soils Author: Pastore, Giovanni, Kaiser, Klaus, Kernchen, Sarmite, Spohn, Marie Source: Geoderma 2020 v.370 pp. 114360 ISSN: 0016-7061get price

Apatite Precious Stones Mining List

Apatite is a mineral and commonly known as a type of phosphorus chemical which is very much required in the process of photosynthesis. It is also a gemstone that is transparent and very rarely found. Most of the consumers in the jewellery world still do not know the existence of such a stone and so it is rarely used to beautify a piece ofget price

(PDF) Environmental impact of phosphate mining and

Apatite is commonly very insoluble in its original . state as extracted from the earth and is practically unavailable as a . Phosphate mining may take place in Sokli in the future, and theget price

LKAB develops new technology for producing strategic

The process can handle both types of apatite produced by LKAB in Kiruna and Malmberget and, in addition to phosphorus, it can extract rare earth metals. The process separates the arsenic and fluoride contained in the apatite; i.e., theses substances do not end up in the phosphorus fertiliser. Phosphorus There is a shortage of phosphorus.get price

Apatite: Mineral information, data and localities.

"Apatite" is a field term for unidentified calcium phosphate members of the apatite group. Most "apatite" is fluorapatite, whereas hydroxylapatite is much less common and chlorapatite is very rare. "Apatite" crystals are short to long hexagonal prisms [0001], with {10 1 0} and {10 1 1} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites andget price

Apatite: The mineral apatite information and pictures

Apatite is the main source of phosphorus. Phosphorus was previously extracted from crystalline Apatite, but nowadays is extracted from enormous deposits of Apatite-rich rock. Apatite is essential in the manufacture of phosphate fertilizers, and is very important in get price

Apatite Control of Phosphorus Release to Runoff from Soils

phosphate mine reclamation sites and illustrate the need to account for compositional differences be-tween reconstructed soils on reclaimed mining sites and their indigenous soil analogues. Keywords Dissolvedphosphorus. Specificsurfacearea.Apatite.Dissolution. Reclamationarea.Surfacerunoff 1 Introduction Phosphorus (P) carried in surface runoffget price

what is the environmental impact of mining apatite

Oct 06, 2018 Apatite is commonly very insoluble in its original state as extracted from the earth and is practically unavailable as a plant phosphorus source.7 For this reason, drastic chemical processing with strong acids (such as Sulfuric acid, phosphoric or nitric acids) is necessary to produce soluble phosphate get price

Apatite an overview ScienceDirect Topics

Apatite is generally a group of phosphate minerals consisting of high concentration of OH −, F − and Cl − referred to as hydroxylapatite, fluorapatite and chlorapatite respectively. Actually, it is a type of mineral named by German geologist in 1786. Apatite is the most commonly used mineral especially in biological environmental systems.get price

Phosphate Deposits USGS

leaching. Phosphate leached from guano phosphatizes the underlying rocks in some areas, forming apatite where the host rock is limestone and forming aluminum- or aluminum-iron-phosphate minerals where the underlying rock is a silicate. Individual deposits of both igneous apatite and marine phos­get price