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Origin of a carbonate-bearing fluorapatite from Tertiary volcanics of the Veneto Volcanic Province, Italy
We present chemical and mineralogical data on a megacryst of a unique carbonate-bearing fluorapatite from altered Tertiary volcanics of the Veneto...
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Hydrothermal alteration processes of fluorapatite and implications for REE remobilization and mineralization
Apatite-rich rocks from marine phosphorites, alkaline igneous complexes, and iron-oxide copper gold (IOCG) deposits commonly contain elevated but...
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A promising chitosan/fluorapatite composite for efficient removal of lead (II) from an aqueous solution
Lead (II) is one of the most important metal ion pollutants commonly found in industrial wastewater. It is harmful to the animal kingdom, and...
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Excess heat capacity and entropy of mixing along the hydroxyapatite-chlorapatite and hydroxyapatite-fluorapatite binaries
The heat capacity, C p , of synthetic hydroxyapatite [Ca 5 (PO 4 ) 3 OH–OH-Ap], as well as of ten compositions along the OH-Ap-chlorapatite (Cl-Ap) join and...
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The origin and composition of carbonatite-derived carbonate-bearing fluorapatite deposits
Carbonate-bearing fluorapatite rocks occur at over 30 globally distributed carbonatite complexes and represent a substantial potential supply of...
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New Data on the Age and Genesis of the Newania Carbonatite Complex, Rajasthan, India
Abstract —The paper presents newly acquired geochemical and mineralogical data on carbonatites and fluorapatite of the Newania intrusive complex,...
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(Fe–Ca–Al)-Phosphate Mineralization Enriched with Rare Earth Elements in Sediments of the Middle Jurassic Paleovalley (Shankinka Ore Occurrence, Moscow Region, Central Part of the Russian Plate)
AbstractA new occurrence of phosphate mineralization (Shankinka) has been explored in the Fedkovskaya River mouth, Ruza district, Moscow region. The...
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Volatile and trace element partitioning between apatite and alkaline melts
Apatite readily incorporates volatile and trace elements in its structure, and thus carries a record of pre-eruptive melt-fluid chemical and physical...
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Textural and compositional constraints on the origin, thermal history, and REE mobility in the Lakeh Siah iron oxide-apatite deposit—NE Bafq, Iran
The Lakeh Siah iron oxide-apatite deposit occurs within the Cambrian succession of volcanic tuffs and rhyolitic rocks intercalated with dolomites,...
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Geochemical and mineralogical analysis of the Upper Cretaceous dolomitic phosphates at Queih Mine, Quseir, Central Eastern Desert, Egypt: depositional environment implications and pollution indices
Soon for the security of phosphorus world supply, which comes primarily from non-renewable sources, the moderate carbonate phosphates will need...
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The potential of REEs in the Eppawala Phosphate Deposit, Sri Lanka: REE enrichment, mineralization, and economic significance
The significant role in high-tech and green technologies, recent outstrip** demand, and constrained global supply of rare earth elements (REEs)...
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Mineralogy, geochemistry, and depositional environment of phosphates in the Pabdeh Formation, Khormuj anticline, SW of Iran
Phosphate deposits are found in the Khormuj anticline at the end of the Folded Zagros Zone of Iran and are enriched in REE and trace metals. Field...
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Stronadelphite from Alkaline Rocks of the Konder Massif (Khabarovsk Krai)
AbstractThis paper presents the characteristics of stronadelphite Sr 5 (PO 4 ) 3 F, identified in the eudialyte–aegirine–albite rocks of the Konder...
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Mineralogy of Pakkanadu carbonatites and associated rocks, South India: constraints on evolution and evidences for REE enrichment
The Pakkanadu carbonatite-alkaline complex (PCAC) is one of the nine carbonatite-alkaline complexes, situated along the NE-SW trending Dhramapuri...
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Sintering and mechanical properties of biomaterials based on the tricalcium phosphate and magnesium fluoride
The sintering and the mechanical properties of tricalcium phosphate–magnesium fluoride composites have been investigated. The rupture strengths of...
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Phosphorite
Phosphate rock resources originate predominantly in sedimentary marine phosphorites. Sedimentary phosphates (mostly phosphorites) are the main source...
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Mineralogy, geochemistry and origin of the phosphorites at Um El-Huwtat mine, Quseir, Central Eastern Desert, Egypt
X-Ray diffraction results for the study mine are mainly represented by two phases (phosphatic and non-phosphatic). First phase is represented by...
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Sergeysmirnovite, MgZn2(PO4)2 · 4H2O, a New Mineral from the Kester Deposit (Sakha-Yakutia, Russia)
AbstractSergeysmirnovite, MgZn 2 (PO 4 ) 2 · 4H 2 O, is a new mineral from the oxidation zone of the Kester mineral deposit, Sakha-Yakutia, Russia. This...
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Carbonaceous Matter of Paleoproterozoic Ministromatolites in Karelia
AbstractTwo main morphotypes were studied in the Paleoproterozoic complex of Karelian ministromatolites: columnar active-branched and columnar...
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Contrasting fluoride contents in mountain rivers of the Andean foreland of Argentina: the influence of A-type peraluminous granites
Water–rock interactions are one of the main factors that control water quality in rivers worldwide. Hydro-geochemical analyses from mountain rivers...
