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  • Books  (21)
  • Journals  (9)
  • mineralogy
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  • 1
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: This Special Issue, entitled “Geochemistry and Mineralogy of Ni-Co Laterite Deposits”, presents an updated overview of Ni-Co laterites as sources of Ni and Co but also of other metals of interest, such as Sc, PGE or REE. This collection is composed by researchers from different fields. The Special Issue starts with two general descriptions of previously unknown laterite deposits, a clay-type Ni-laterite deposit from Cuba and a magnesium silicate Ni-laterite deposit from the Philippines. It follows with four papers focusing on the occurrence of Co, Sc and other critical metals located in current tropical environments (the Dominican Republic, Venezuela and Brazil) as well as non-tropical environments (the Balkan peninsula, Spain and Chile). The three following papers deal with novel techniques or methodologies to improve the characterization of the Ni-laterite profiles, involving the use Al as a Sc proxy, water correction of in situ portable XRF analyses, and the study of hyperspectral data using quadrant scan. The next paper focuses on the silicification commonly observed, yet understudied, in some Ni-laterite profiles using oxygen and silicon isotopes. And finally, the last contribution examines the presence of unusual minerals (diamond, SiC) in Ni-laterite breccias.
    Keywords: Fe–Ni–Co laterites ; critical metals ; REE ; PGE ; Cr(VI) contamination ; spectral data ; mineralogical data ; lithological boundaries ; nickel laterite ; New Caledonia ; quadrant scan ; Ni-laterites ; mineralogy ; breccia ; uranium ; SiC ; combined analyses ; Raman ; nickel laterites ; lateritization ; serpentinization ; weathering ; goethite ageing ; pXRF ; mine ; nickel ; iron ; water content ; dilution law ; Beer-Lambert law ; saturation ; scandium ; laterite ; Ni-laterite ; sequential extraction ; cobalt ; manganese ; lithiophorite ; asbolane ; Ni-Co laterite ; Piauí ; metal cycling ; cobalt speciation ; biogeochemistry ; redox cycling ; silcrete ; pseudo-karst ; oxygen and silicon isotopes ; Sc ; Co ; Ni-rich serpentinite ; Mn-oxyhydroxides ; smectite ; serpentine ; clay-type ; Cuba ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::R Earth sciences, geography, environment, planning
    Language: English
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  • 2
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This Special Issue, “Advances in Environmental Applied Physics”, collected original papers from eminent researchers in the field of environmental pollutants, which constitute a health risk to the population, increasing the likelihood of incurring cancer.
    Keywords: natural radioactivity ; river sediments ; gamma spectroscopy ; radiological risks ; background radioactivity ; multivariate statistics ; flour ; natural and anthropogenic radioactivity ; heavy metals contamination ; mineral concentration ; high-purity germanium gamma spectrometry ; inductively-coupled plasma mass spectrometry ; inductively-coupled plasma emission spectroscopy ; effective dose ; ingestion ; radon exhalation ; equivalent dose rate ; car parking lots ; Monte Carlo simulation ; complex DNA damage ; double strand breaks ; ionizing radiation ; radiological incident ; radionuclide ; absorbed dose ; 137-caesium ; surface activity ; drinking water ; radioactivity ; uranium ; High Purity Germanium (HPGe) gamma-ray spectrometry ; Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) ; baby food ; gamma spectrometry ; activity concentration ; radiological hazard ; cosmic rays ; ionization ; radiation ; atmosphere ; solar cycle ; flight level ; aviation ; pyroclastic products ; potentially toxic elements ; pollution ; Antarctica ; radiation detector ; neutron measurement ; portable monitoring system ; basalt aggregate for concrete ; radiological risk ; mineralogy ; HPGe γ-ray spectrometry ; heavy metals ; inductively coupled plasma mass spectrometry ; X-ray diffraction ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
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  • 3
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-27
    Description: The Key Laboratory of High-temperature and High-pressure Study of the Earth’s Interior belongs to the Institute of Geochemistry, Chinese Academy of Sciences, China. It is a unique and authoritative key laboratory at the provincial and ministerial levels. The Key High-Pressure Laboratory is primarily focused on the high-temperature and high-pressure experimental sciences, in combination with filed geophysical observation, theoretical calculation and advanced analysis tests in order to explore the chemical composition, cycling structure, geological state, material circulation, etc., of deep Earth. The mainstream research subjects of the Laboratory mainly include: research and development of experimental platforms and measurement techniques at high temperatures and high pressures; high-pressure material synthesis and hot-pressed sintering techniques; physical and chemical characterizations (e.g. electrical conductivity, thermal conductivity, ultrasonic wave velocity, etc.) of minerals and rocks at conditions of high pressure and different oxygen fugacities by virtue of representative high-pressure apparatus, including autoclaves, piston cylinders, multi-anvil presses, diamond anvil cells and shock waves; high-pressure physiochemical behavior and storage states in the geological fluid and melt of deep Earth interior; high-pressure theoretical calculations; and high-pressure applications in the service of national economical and societal development.
    Keywords: diopside ; thermodynamic properties ; eclogite model ; adiabatic temperature gradient ; adiabatic geotherm ; laser shock compression ; sound velocity ; high-pressure ; quartz ; Grüneisen parameter ; super-earth ; rock porosity ; high isostatic pressure ; sample holder ; sandstone ; electrical conductivity ; impedance spectroscopy ; water ; titanium-bearing olivine ; epidote ; amphibole ; kaolinite ; high pressure ; pyrite ; Raman spectroscopy ; high temperature ; gabbro ; mineralogical proportions ; differential stress ; coesite ; phase transition ; calcite ; crystallinity ; mineralogy ; electronic transition ; hydrothermal ; trace elements ; zircon ; reidite ; high P–T experiment ; diamond anvil cell ; in situ Raman spectroscopy ; density functional theory ; phase diagram ; structural phase transition ; brucite ; atomistic simulations ; high pressures ; high temperatures ; structural properties ; elastic properties ; bulk modulus ; vibrational spectra ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general
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  • 4
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The increasing partial pressure of atmospheric CO2 (pCO2) is reducing surface ocean pH, a process known as ocean acidification (OA) This results in a reduced saturation of the seawater with respect to the CaCO3 polymorphs aragonite, high-Mg calcite, and low-Mg calcite that are involved in the biological formation of calcareous skeletons and shells. The effect of OA on calcium carbonate precipitation and the subsequent dissolution in carbonate depositional systems, such as coral reefs, is a hotly debated topic. While early studies suggested that certain carbonate-secreting organism groups may be strongly affected by OA or may even become extinct, others observed highly variable, species-specific responses to OA, whereby some taxa are negatively affected, some are positively affected, and others are unaffected. The collection of articles presented in this Special Issue presents ongoing research into the effects of OA on calcareous biomineralization while introducing some new questions and provocative hypotheses. The continued investigation of these concepts should advance our understanding of the mechanisms of biocalcification and improve predictions of how future CO2-induced changes in marine and freshwater systems will impact calcifying organisms, as well as the ecosystems they comprise, in the decades and centuries ahead.
    Keywords: biomineralization ; calcification ; Mytilus edulis ; Mytilus trossulus ; predator-prey interactions ; coral reefs ; coral recruits ; skeletal structure ; synchrotron phase contrast-enhanced microCT ; PCE-CT ; artificial intelligence ; ocean acidification ; n/a ; ocean warming ; echinoderm ; starfish ; mineralogy ; skeleton ; freshwater acidification ; freshwater calcifier ; carbon dioxide ; Lake Tahoe ; Caribbean ; coral ; pH regulation ; boron isotopes ; B/Ca ; carbon isotopes ; photosynthesis ; bleaching ; symbiont ; microelectrode ; global warming ; calcifying fluid ; scleractinian coral ; zooxanthellate photosymbiont ; phosphate ; nutrient limitation ; Archaean ; Proterozoic ; cyanobacteria ; calcareous algae ; coccolithophores ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
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  • 5
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This Special Issue on Interdisciplinary Research for Cultural Heritage Conservation in Applied Sciences aims to bring together some of the latest researches in this field. A total of 10 papers focusing on different aspects of cultural heritage were published on the topics: rock art, mural paintings, stone monuments, stained-glass windows, environmental sensors, historic infrastructures, and analects of Confucius.
    Keywords: biodeterioration ; mural paintings ; bacteria ; fungi ; biocide ; environmental pH ; exhibition halls ; sensors ; museum ; preventive conservation ; cultural heritage ; ontology ; Confucianism ; The Analects of Confucius ; essential characteristics ; protégé ; sandstone weathering ; chemical weathering ; rock shelter ; rock art ; flashed glass ; multianalytical characterization ; chemical composition ; chromophores ; laser-induced breakdown spectroscopy ; thickness measurements ; green algae ; lichens ; Trebouxia aggregata ; black fungi ; bryophytes ; limestone ; mineralogy ; restoration ; Seville City Hall ; public works ; dams ; aqueducts ; siphon ; reservoir ; overall value ; heritage system ; network ; new uses ; petroglyphs ; Negev desert ; nanopore sequencing technology ; metagenomics ; analytical techniques ; cyanobacteria ; chlorophytes ; surface cleaning ; hydrogen peroxide ; sodium hypochlorite ; grisaille ; recipe ; raw material ; conservation ; degradation ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
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  • 6
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-27
    Description: Dating and geochemical analyses of detrital minerals (mainly zircons) combined with traditional methods, such as heavy minerals and sandstone modes, are a powerful tool in paleogeographic and paleotectonic research and industrial applications.
    Keywords: detrital zircon U-Pb geochronology ; bulk geochemistry ; provenance ; tectonic setting ; West Bogeda Shan ; U-Pb geochronology ; detrital zircon ; source-to-sink ; provenance analysis ; mixing model ; sediment budgeting ; east China seas ; Pennsylvanian ; Sino-Korean Block ; detrital zircons ; U–Pb ages ; subduction zones ; U–Pb dating ; sandstone petrography ; peripheral bulge ; tectonics ; zircon U-Pb ages ; muscovite 40Ar/39Ar ages ; sediment provenance ; Yangtze River ; detrital-zircon age spectrum ; Ereendavaa terrane ; Mongol-Okhotsk orogenic belt ; opening of the Mongol-Okhotsk ocean ; northeastern Mongolia ; Lu-Hf isotopes ; early Miocene ; Yinggehai-Song Hong Basin ; South China Sea ; stratigraphic thicknesses ; net sand to gross thickness ratio ; conglomerate percentage ; heavy mineral analysis ; detrital zircon U‒Pb geochronology ; Intermontane basin ; Mongolia ; laser ablation U-Pb dating ; Hafnium isotope-ratio ; terrane definition ; paleotectonic reconstruction ; Western Andes ; Miocene ; Silante Formation ; Ecuador ; compositional heterogeneity ; major element ; nonmarine basin ; gejiu basalts ; zircon U–Pb dating ; geochemistry ; Sr–Nd–Pb isotope ; petrogenesis ; Cameroon ; Meiganga ; gold placer ; trace element ; geochronology ; Archean-Proterozoic origins ; zircon crystal morphology ; zircon textures ; zircon trace elements ; alteration of zircon ; REE in zircon ; rare metal granites ; Li-F granites ; Western Hercynian Meseta ; Permian basin ; Tiddas Souk Es-Sebt des ait ikko volcanic basin ; U–Pb geochronology ; mineralogy ; petrology ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general
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  • 7
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2022-05-06
    Description: This book entitled Zeolites is a collection of papers recently published in the journal Crystals, focusing on zeolites as a group of hydrated aluminosilicates with unique physical and chemical properties that can have numerous and important applications. The collection opens with works related to the geological documentation of the newest deposits of natural zeolites. The second part of the book describes a variety of synthesis methods and characterizes the resulting products. Finally, some recent advances in their applications in different fields are presented at the end of the book.
    Keywords: zeolite ; alkali-activation ; geopolymer ; metakaolin ; metahalloysite ; adsorption ; DRIFTS operando ; ethylene scavenging ; postharvest quality ; tomato ; natural zeolite ; zeolite synthesis ; zeolite characterization ; zeolite application ; mordenite ; mineral fibers ; erionite ; potential toxicity ; ZSM-5 zeolites ; L,L-lactide ; size effect ; diffusion control ; zeolite L precursor ; Fe-LTL zeolite ; ultra-fine ; zeolite beads ; hierarchical zeolite ; pseudomorphic transformation ; ZSM-12 ; shaping ; nanosponges ; adoption ; acceptance ; household water treatment systems ; long-term effectiveness ; membrane ; separation ; silicalite-1 ; xylene ; orientation ; evolutionally selection ; NaP2 zeolite ; NaY gel ; microwave-assisted hydrothermal ; conventional hydrothermal ; waste management ; fly ash zeolites ; faujasite ; wastewater remediation ; willhendersonite ; chabazite ; zeolites ; Lessini Mounts ; kaolin ; kaolinite ; clinoptilolite ; thermal expansion ; thermal diffusivity ; thermal conductivity ; specific heat capacity ; natural zeolite A ; mineralogy ; mudstones ; crystal ; sedimentary environment ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry ; bic Book Industry Communication::P Mathematics & science::PN Chemistry::PNR Physical chemistry
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  • 8
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2022-05-06
    Description: This book, entitled “Elemental Concentration and Pollution in Soil, Water, and Sediment”, presents an updated overview of the main trace elements in living organisms. This collection brings researchers from different fields together, including those from biogeochemistry and ecotoxicology in various environmental media, in order to provide a more comprehensive understanding of the environmental fate of trace elements in their biogeochemical cycles for different ecosystems.
    Keywords: marine sediments ; trace metals ; speciation ; contamination ; San Simon Bay ; soil remediation ; toxicity bioassays ; humic substances ; calcium carbonate ; iron oxides ; polyphenolic compounds ; heavy metals ; soil ; enrichment factor ; geoaccumulation index ; contamination factor ; pollution indices ; soil contamination ; geogenic and anthropogenic origin ; iron ore deposits ; tailing dumps ; seepage water ; water balance of the enterprise ; metals ; p-arsanilic acid ; adsorption ; natural fluorine-enriched soil ; natural sources ; chemical extraction resistance ; low washing efficiency ; lacustrine sediments ; geochemical mapping ; spatial distribution ; contamination assessment ; environmental risk assessments ; sediment quality guidelines ; pollution ; bottom sediments ; river ; acid mine drainage ; abandoned coal mine ; potentially toxic elements ; pollution level ; potential ecological risk ; sewage sludge ; calcareous soil ; extraction DTPA ; crop ; transfer ; long time ; engineered nanoparticles ; organic matter ; phosphorus ; nutrients ; volcanic soil ; agricultural land contamination ; sediment ; irrigation canal ; heavy metal ; copper ; cadmium ; Daphnia pulex ; ecotoxicology ; LC50 ; ecological risk assessment ; karst areas ; soil properties ; urban ecology ; trace metal pollution ; soil organisms ; diversity ; Western Siberia ; snow pollution ; trace metals and metalloids ; atmospheric depositions ; solubility ; sediments ; bioindicators ; geochemical background ; risk assessment code ; sequential extraction ; groundwater ; precipitation ; caustic calcined magnesia (CCM) ; permeable reactive barrier (PRB) ; natural water ; water quality ; Arctic region ; elemental composition ; springs ; QR code ; modern sedimentation processes ; mineralogy ; geochemistry ; authigenic minerals ; hydrogen sulfide contamination ; arid climate ; Caspian Sea ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry
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  • 9
    Publication Date: 2024-04-11
    Description: This Special Issue, focusing on the value of mineralogical monitoring for the mining and minerals industry, should include detailed investigations and characterizations of minerals and ores of the following fields for ore and process control: Lithium ores—determination of lithium contents by XRD methods; Copper ores and their different mineralogy; Nickel lateritic ores; Iron ores and sinter; Bauxite and bauxite overburden; Heavy mineral sands. The value of quantitative mineralogical analysis, mainly by XRD methods, combined with other techniques for the evaluation of typical metal ores and other important minerals, will be shown and demonstrated for different minerals. The different steps of mineral processing and metal contents bound to different minerals will be included. Additionally, some processing steps, mineral enrichments, and optimization of mineral determinations using XRD will be demonstrated. Statistical methods for the treatment of a large set of XRD patterns of ores and mineral concentrates, as well as their value for the characterization of mineral concentrates and ores, will be demonstrated. Determinations of metal concentrations in minerals by different methods will be included, as well as the direct prediction of process parameters from raw XRD data.
    Keywords: barite ; mineralogy ; industrial application ; beneficiation ; specific gravity ; bauxite overburden ; Belterra Clay ; mineralogical quantification ; Rietveld analysis ; machine learning ; artificial intelligence ; mining ; mineralogical analysis ; bauxite ; available alumina ; reactive silica ; XRD ; PLSR ; lithium ; quantification ; clustering ; Rietveld ; cluster analysis ; spodumene ; petalite ; lepidolite ; triphylite ; zinnwaldite ; amblygonite ; chalcopyrite ; ore blending ; copper flotation ; nickel laterite ; ore sorting ; framboidal pyrite ; sulfide minerals ; flotation ; process mineralogy ; heavy minerals ; ilmenite ; titania slag ; rietveld ; Magneli phases ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTU Mining technology and engineering
    Language: English
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  • 10
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2022-07-06
    Description: This book, “Clay Mineral Transformations after Bentonite/Clayrocks and Heater/Water Interactions from Lab and Large-Scale Tests”, covers a broad range of relevant and interesting topics related to deep geological disposal of nuclear fuels and radioactive waste. Most countries that generate nuclear power have developed radioactive waste management programmes during the last 50 years to emplace long-lived and/or high-level radioactive wastes in a deep underground repository in a suitably chosen host rock formation. The aim is to remove these wastes from the human environment. If a site is properly chosen, a repository system comprising both natural and engineered barriers would provide a high level of protection from the toxic effects of the waste.The 17 papers published in this Special Issue show that bentonites and clayrocks are an essential component of the multi-barrier system ensuring the long-term safety of the final disposal of nuclear waste. The efficiency of such engineered and natural clay barriers relies on their physical and chemical confinement properties, which should be preserved in the long-term.
    Keywords: calcium bentonite ; gel ; swelling ; water uptake ; ESEM ; EDXA ; surface area ; XRD ; radioactive waste disposal ; cement–clay interaction ; bentonite ; cementitious materials ; alteration ; alkaline conditions ; radioactive waste ; cement-clay interaction ; OPC ; LAC ; alkaline leachate ; cement—clay interaction ; diffusion ; dual porosity ; electrostatic effects ; reactive transport modelling ; near field ; radioactive waste repository ; low-pH cement ; technical barrier ; Äspö ; ABM-test ; smectite alteration ; swelling pressure ; permeability ; hydraulic gradient ; engineered barriers ; geological repository ; selenium reduction ; sorption ; Opalinus Clay ; in situ ; batch tests ; smectite ; crystal structure ; water in the smectite interlayer ; mineralogical changes ; thermal treatment ; BET ; swell index ; liquid limit ; water retention curves ; iron ; in situ experiment ; interface ; layer charge ; metal substitution ; SEM–EDS ; microbial diversity ; organic supplements ; magnesium bentonite ; thermal loading ; montmorillonite content ; thermal analysis with evolved gas analysis ; cation exchange capacity ; specific surface area ; saturated hydraulic conductivity ; microbial survivability ; HLRW ; ABM test ; SEM-EDX ; repository ; high temperatures ; ordinary Portland cement ; mudstone ; sequential flow experiment ; reactive-transport modelling ; anion distribution ; CEC ; exchangeable cations ; hydration ; MiniSandwich ; sandwich sealing system ; solute transport ; waste repositories ; water content ; Milos ; interlayers ; iron–bentonite interaction ; reactive transport ; numerical model ; bentonites ; smectites ; pore water chemistry ; mineralogy ; cation exchange ; ABM experiment ; large-scale tests ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences
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  • 11
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The extraction of apatite minerals is becoming more and more crucial with the depletion of high-grade ores. At the same time, many streams of waste are continuously being produced by the phosphate industry, including calcareous and siliceous waste rocks, clayey sludge and phosphogypsum. These waste products are produced in huge volumes reaching a ratio of between 5 to 10 tons of waste per each ton of concentrated phosphate. The management of these waste products is becoming a real issue in terms of growing public awareness and environmental and financial aspects. In addition, phosphate ores are known to contain other critical raw materials (CRM) such as rare earth elements and uranium. The recovery of these vital elements from phosphate waste may help to develop the needs of the green energy of the future and contribute to the achievement of the sustainable development goals. In this Special Issue, insights related to the following aspects were studied: phosphate extraction and beneficiation, novel phosphate ores, the fine characterization of phosphate ores and waste, phosphoric acid production, critical raw material (CRM) recovery from phosphate ores and waste, reprocessing of phosphate wastes and finally the valorization and reuse of phosphate waste and phosphogypsum.
    Keywords: TA1-2040 ; T1-995 ; TN1-997 ; n/a ; valorization ; ceramic membrane ; general industrial solid waste ; cemented paste backfill ; cemented phosphogypsum backfill ; unconfined compressive strength ; mineralogy ; froth flotation ; silicate-carbonate gangue ; geochemical characteristic ; activity concentration ; building materials ; valuable elements ; upgrading ; radiological influence ; durability ; phosphogypsum ; phosphate ore processing ; low-grade phosphate ; industrial waste ; phosphogypsum (PG) ; filtration ; civil engineering ; comprehensive utilization ; phosphorite ; flotation ; REE recovery ; phosphate mine waste rocks ; Gafsa-Metlaoui Basin ; acid extraction ; rare earth elements ; drying-wetting cycles ; column flotation ; slimes ; collector ; phosphate mine tailings ; apatite ; purification ; REE-bearing phases ; weathered ore ; water washing ; depressant ; environment behavior ; experimental design ; interfering ions ; technological mineralogy ; red mud ; rare earth elements (REEs) ; waste management ; phosphate ore ; waste recycle ; natural radioactivity ; natural aggregates ; phosphate ; beneficiation ; beneficiation tailings ; road techniques wet process ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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  • 12
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-12-20
    Description: The Arctic zone of the Earth is a major source of mineral and other natural resources for the future development of science and technology. It contains a large supply of strategic mineral deposits, including rare earths, copper, phosphorus, niobium, platinum-group elements, and other critical metals. The continued melting of the sea ice due to climate change makes these resources more accessible than ever before. However, the mineral exploration in the Arctic has always been a challenge due to the climatic restrictions, remote location, and vulnerability of Arctic ecosystems. This book covers a broad range of topics related to the problem of Arctic mineral resources, including geological, geochemical, and mineralogical aspects of their occurrence and formation; chemical technologies; and environmental and economic problems related to mineral exploration. The contributions can be tentatively classified into four major types: geodynamics and metallogeny, mineralogy and petrology, mineralogy and crystallography, and mining and chemical technologies associated with the exploration of mineral deposits and the use of raw materials for manufacturing new products. The book can be of interest for all those interested in Arctic issues and especially in Arctic mineral resources and associated problems of mineralogy, geology, geochemistry, and technology.
    Keywords: Q1-390 ; U mineralization ; n/a ; ivanyukite ; Kovdor phoscorite–carbonatite complex ; Precambrian ; Kovdor phoscorite-carbonatite complex ; hydrothermal deposits ; chalcopyrite ; cathodoluminescence ; PGE ; low-grade copper-nickel ore ; Northern Karelia ; diamond processing plants ; transformation mineral species ; batievaite-(Y) ; rock alteration ; Khibiny ; bacterial leaching ; cryomineralogenesis ; beryllium minerals ; Siberian craton ; apatite-nepheline deposit ; apatite ; gold ; hainite-(Y) ; Keivy alkaline province ; zircon ; niobium ; zeolite group minerals ; shkatulkalite ; zircon dating ; electrochemical separation ; hydrothermal synthesis ; pyrrhotite ; Breivikbotn ; crystal fractionation ; Sakharjok massif ; Palaeoproterozoic ; titanosilicate ; Pechenga structure ; LIP ; antigorite ; nepheline ; forsterite ; Arctic ; saponite-containing waters ; chemical composition ; Khibiny promising structures ; melteigite ; sulfuric-acidic decomposition ; petroleum potential ; mineralogy ; mafic intrusion ; Paleoproterozoic ; vuonnemite ; calcite ; garnet ; raw materials ; search of trend differences ; metallogeny ; Lovozero alkaline massif ; isotopes ; kimberlite ; phase diagram apatite-nepheline-diopside ; mineral data ; ore dressing tailings ; geochronology ; geodynamic evolution ; pyrochlore supergroup minerals ; pentlandite ; saponite product applications ; basic rocks ; Plume ; West-Pana intrusion ; Rb-Sr ; U-Pb ; heap leaching ; rinkite group minerals ; Arctic zone ; Ti-in-zircon geothermometry ; apatite-nepheline-titanite ore ; cobaltpentlandite ; silicocarbonatite ; Fennoscandian Shield ; titanium ; MHD-source “Khibiny” ; Fedorova-Pana Complex ; Northern Norway ; evolution of the composition ; trace elements ; oil ; vanadium mineralization ; geodynamics ; gas ; greenstone belt ; South Reef ; typochemistry ; mechanical activation ; alkali-activated binder ; Kola region ; hydrothermal veins ; Kola Peninsula ; macrocrysts ; titanyl sulfate ; alkaline rocks ; cryogenic treatment ; granite ; Yenisei-Khatanga basin ; crystal structure ; pegmatites ; conductive layers ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general
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  • 13
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-12-21
    Description: Reactions at mineral surfaces are central to all geochemical processes. As minerals comprise the rocks of the Earth, the processes occurring at the mineral–aqueous fluid interface control the evolution of the rocks and hence the structure of the crust of the Earth during processes such as metamorphism, metasomatism, and weathering. In recent years focus has been concentrated on mineral surface reactions made possible through the development of advanced analytical methods such as atomic force microscopy (AFM), advanced electron microscopies (SEM and TEM), phase shift interferometry, confocal Raman spectroscopy, and advanced synchrotron-based applications, to enable mineral surfaces to be imaged and analyzed at the nanoscale. Experiments are increasingly complemented by molecular simulations to confirm or predict the results of these studies. This has enabled new and exciting possibilities to elucidate the mechanisms that govern mineral–fluid reactions. In this Special Issue, “Mineral Surface Reactions at the Nanoscale”, we present 12 contributions that highlight the role and importance of mineral surfaces in varying fields of research.
    Keywords: QE1-996.5 ; Q1-390 ; metadynamics ; minerals ; n/a ; microstructure ; dissolution-reprecipitation ; stabilization ; albite ; mineral–water interface ; simulation ; krennerite ; mineralogy ; mineral replacement ; calcite ; pyrite ; dissolution-precipitation ; goethite ; recrystallization ; gold–(silver) tellurides ; isotopes ; non-classical nucleation ; calaverite ; interfacial precipitation ; toxic metals ; metasomatism ; adsorption ; amorphous ; pre-nucleation clusters ; surface ; dissolution ; hematite ; cyanide ; MOFs ; leaching ; Raman spectroscopy ; sodalite ; carbonation ; rate spectra ; retreat velocity ; additives ; liquid precursors ; bioaragonite ; brucite ; kinetics ; re-adsorption ; brushite ; polymorphs ; dissolution–precipitation ; hydrothermal experiments ; apatite ; ferrihydrite ; mesocrystals ; catalysts ; carbonic anhydrase ; XPS ; replacement reaction ; mineral growth ; carbon capture and storage ; interfaces ; citrate ; classical nucleation theory ; REEs ; phosphate ; wollastonite ; polarization microscopy ; natural porous gold ; sylvanite ; analcime ; calcium phosphate ; Fe atom exchange ; nepheline ; biomineralisation ; interface-coupled dissolution–reprecipitation ; hydrothermal method ; bic Book Industry Communication::R Earth sciences, geography, environment, planning
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  • 14
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-12-21
    Description: Rare earth elements (REE) are critical to our modern way of life, although potential primary and secondary sources of these elements and the economics of the REE sector remain somewhat poorly understood. This Special Issue focuses on furthering our understanding of the criticality and potential sources of rare earth elements as well as the economics of the REE sector. The papers in this Special Issue provide further insight into the full life cycle of REE, information that is vital to ensuring the existence of sustainable sources of these critical elements into the future.
    Keywords: QE1-996.5 ; economic geology ; critical metals ; mineral economics ; mineralisation ; criticality ; mineralogy ; Rare Earth Elements ; bic Book Industry Communication::R Earth sciences, geography, environment, planning
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  • 15
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    Firenze University Press
    Publication Date: 2024-03-25
    Description: The city of Firenze represents, for the variety of its artistic and architectural heritage, a kind of open-air museum. Works of art and monuments are mainly made of the rocks outcropping in Firenze and in the surrounding areas; indeed, a close link exists between monuments, geographical position of the city and its history. Florence, is characterised by the color of its stone-built cultural heritage, mainly by the warm ochraceous color of the Medieval Pietraforte sandstone and the cerulean grey of the Renaissance Pietra Serena sandstone together with other natural and artificial materials used to complete or cover the stone walls. The web-app 〈i〉Florence RockinArt〈/i〉 was created to deepen the knowledge of the stone materials. It is addressed to all those who are interested in discovering the monuments of Florence by carefully observing the stone materials that make up them. The web-app contains short historical notes on the main monuments and detailed geological, mineralogical and petrographic characteristics of the natural and artificial materials of which they are constituted.
    Keywords: D1-2009 ; natural and artificial materials ; Florence ; mineralogy ; petrography ; cultural heritage ; thema EDItEUR::D Biography, Literature and Literary studies::D Biography, Literature and Literary studies::DN Biography and non-fiction prose
    Format: application/octet-stream
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2022-01-31
    Description: With its wide spectrum of data, case studies, monitoring, and experimental and numerical simulation techniques, the multidisciplinary approach of material, environmental, and computer science applied to the conservation of cultural heritage offers several opportunities for the heritage science and conservation community to map and monitor state-of-the-art knowledge on natural and human-induced climate change impacts on cultural heritage—mainly constituted by the built environment—in Europe and Latin America. Geosciences’ Special Issue titled “Preservation of Cultural Heritage and Resources Threatened by Climate Change” was launched to take stock of the existing but still fragmentary knowledge on this challenge, and to enable the community to respond to the implementation of the Paris agreement. These 10 papers exploit a broad range of data derived from preventive conservation monitoring conducted indoors in museums, churches, historical buildings, or outdoors in archeological sites and city centers. Case studies presented in the papers focus on a well-assorted sample of decay phenomena occurring on heritage materials (e.g., surface recession and biomass accumulation on limestone, depositions of pollutant on marble, salt weathering on inorganic building materials, and weathering processes on mortars in many local- to regional-scale study areas in the Scandinavian Peninsula, the United Kingdom, Belgium, France, Italy, Greece, and Panama). Besides monitoring, the methodological approaches showcased include, but are not limited to, original material characterization, decay product characterization, and climate and numerical modelling on material components for assessing environmental impact and climate change effects.
    Keywords: Q1-390 ; Central America ; typical and extreme weather conditions ; indoor air quality ; climate modelling ; mineralogy ; adaptation ; degradation ; decay ; exposure tests ; mortars ; experimental research ; preventative conservation ; heritage materials ; moisture transport ; damage functions ; wood ; medieval buildings ; mechanical decay ; long-term monitoring ; climate change ; stable isotopes ; mitigation ; Norwegian protected buildings ; preventive conservation ; relative humidity ; cultural heritage ; built heritage ; mitigation actions ; salt climatology ; conservation ; outdoor climate ; built cultural heritage weathering ; indoor climate ; environmental impact ; hygrothermal simulation models ; surface recession ; biomass accumulation ; zero status ; masonry ; Scandinavian countries ; ?13C ; measurements ; climate variations ; chemical decay ; warning report ; salt crystallisation ; climate change scenarios ; ?18O ; management ; depositions on marble ; biological decay
    Language: English
    Format: application/octet-stream
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    Rijeka : InTech
    Keywords: mineralogy ; economic geology ; mining engineering ; environmental impacts ; mining industry
    Description / Table of Contents: Chapter 1: Petrology, Geochemistry and Mineralogy of Greisens Associated with Tin-Tungsten Mineralisation: Hub Stock Deposit at Krásno–Horní Slavkov Ore District, Czech Republic by Miloš René --- Chapter 2: Zechstein-Kupferschiefer Mineralization Reconsidered as a Product of Ultra-Deep Hydrothermal, Mud-Brine Volcanism by Stanley B. Keith, Volker Spieth and Jan C. Rasmussen --- Chapter 3: Lead-, Zinc-, and Iron-Sulfide Mineralization from Northern Iraq by Ali Ismail Al-Juboury, Waleed S. Shingaly, Elias M. Elias and Mohsin M. Ghazal --- Chapter 4: Geology, Textural Study, Ore Genesis and Processing of the Tabuaço Tungsten Deposit (Northern Portugal) by Yann Foucaud, Bénédicte Lechenard, Philippe Marion, Inna Filippova and Lev Filippov --- Chapter 5: Lead Isotopes as Tracers of Metal Sources and Timing of the Carbonate-Hosted Pb-Zn Deposits in the Nappes Zone, Northern Tunisia by Nejib Jemmali and Fouad Souissi --- Chapter 6: Trace Elements in Coal Gangue: A Review by Shaoqing Guo --- Chapter 7: Mineralization: Evidence from Fission Track Thermochronology by Wanming Yuan and Ke Wang --- Chapter 8: Statistical Approach to Mineral Engineering and Optimization by Mehmet Deniz Turan --- Chapter 9: Expected Return on Capital in Mining Industry by Aneta Michalak
    Pages: Online-Ressource (224 Seiten)
    ISBN: 9789535137498
    Language: English
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    Keywords: clays ; clay minerals ; mineralogy
    Description / Table of Contents: This book presents the state-of-the-art results of characterization of clays, clay minerals and ceramic materials based on clay minerals. The main goal of this work is to contribute to the rationalization of some important results obtained in the open area of clays and clay materials characterization. Moreover, this book also provides a comprehensive account on polymer and biopolymer-clay nanocomposites, use of clay as adsorption materials for industrial pollutants, ceramic materials in cultural heritage and physical-chemistry aspects of clay and clay minerals aqueous dispersions. This book will be beneficial for students, teachers and researchers of many areas who are interested to expand their knowledge about clays and its derivates in the fields of Nanotechnology, Biotechnology, Environmental Science, Industrial Remediation, Cultural Heritage, etc.
    Pages: Online-Ressource (192 Seiten)
    ISBN: 9789535122593
    Language: English
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    Rijeka : InTech
    Keywords: mineralogy ; zeolite
    Description / Table of Contents: This book collects recent results about research activities on zeolites, from synthesis to application. It is composed of two sections. The first is devoted to articles and brief review articles on the synthesis of zeolite from fly ash and final application of these newly formed minerals to solve environmental problems. The second part of the book provides useful information on different applications both of natural and synthetic zeolites ranging from environmental pollution to industrial and commercial applications. The performance of zeolite molecular sieves, hollow titanium zeolites and luminescent zeolites is interesting considering the new frontiers reached by the research on zeolites. This book is a useful instrument for researchers, teachers and students who are interested in investigating innovative aspects of the studies on zeolite.
    Pages: Online-Ressource (224 Seiten)
    ISBN: 9789535125778
    Language: English
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    Rijeka : InTech
    Keywords: mineralogy ; physical sciences ; engineering ; technology
    Description / Table of Contents: An Introduction to the Study of Mineralogy is a collection of papers that can be easily understood by a wide variety of readers, whether they wish to use it in their work, or simply to extend their knowledge. It is unique in that it presents a broad view of the mineralogy field. The book is intended for chemists, physicists, engineers, and the students of geology, geophysics, and soil science, but it will also be invaluable to the more advanced students of mineralogy who are looking for a concise revision guide.
    Pages: Online-Ressource (154 Seiten)
    ISBN: 9789533078960
    Language: English
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    Keywords: clay ; mineralogy
    Description / Table of Contents: Clay is an abundant raw material which has a variety of uses and properties depending on their structure and composition. Clay minerals are inexpensive and environmentally friendly naturally occurring nanomaterials, thanks to their 1 nm thick silicate layers, in all types of sediments and sedimentary rocks. The book chapters have been classified according to their characteristics in topics and applications. Therefore, in the first section five chapters is dedicated to the characterization and utilization of clay minerals in deposits. The second section includes four chapters about the significance of clay minerals in soils. Third section is devoted to different aspects of clay minerals research, especially to the characterization of structure and modifications for their application.
    Pages: Online-Ressource (326 Seiten)
    ISBN: 9789535107385
    Language: English
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    De Gruyter | Mineralogical Society of America (MSA) | GeoScienceWorld
    Online: 1.1916 – (GFZ only)
    Print: 36.1951 – 93.2008 (Location: A17, Kompaktmagazin, 4/4 - 5/1)
    Publisher: De Gruyter , Mineralogical Society of America (MSA) , GeoScienceWorld
    Print ISSN: 0003-004X
    Electronic ISSN: 1945-3027
    Topics: Geosciences , Physics
    Keywords: GeoScienceWorld ; mineralogy
    Acronym: Ammin
    Abbreviation: Am Mineral
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    Mineralogical Association of Canada (MAC) | GeoScienceWorld
    Online: 6.1957 – (GFZ only)
    Print: 14.1976 – 46.2008 (Location: A17, Kompaktmagazin, 13/3-4)
    Publisher: Mineralogical Association of Canada (MAC) , GeoScienceWorld
    Print ISSN: 0008-4476
    Electronic ISSN: 1499-1261 , 1499-1276
    Topics: Geosciences
    Keywords: GeoScienceWorld ; mineralogy
    Parallel titles: The Canadian Mineralogist
    Acronym: CM
    Abbreviation: Can Mineral
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    Springer | Clay Minerals Society | GeoScienceWorld
    Online: 45.1997 –
    Online: 45.1997 –
    Formerly as: Clays and Clay Technology  (1952–1952)
    Publisher: Springer , Clay Minerals Society , GeoScienceWorld
    Corporation: Clay Minerals Society , National Conference on Clays and Clay Minerals , National Academy of Sciences 〈Washington, DC〉
    Print ISSN: 0009-8604
    Electronic ISSN: 1552-8367
    Topics: Geosciences
    Keywords: mineralogy
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    Cambridge University Press; Mineralogical Society of Great Britain & Ireland | GeoScienceWorld
    Online: 53.2018 –
    Print: 34.1999 – 42.2007 (Location: A17, Kompaktmagazin, 75/2)
    Publisher: Cambridge University Press; Mineralogical Society of Great Britain & Ireland , GeoScienceWorld
    Print ISSN: 0009-8558
    Electronic ISSN: 1471-8030
    Topics: Geosciences
    Keywords: GeoScienceWorld ; mineralogy
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    Schweizerbart Science Publishers | GeoScienceWorld
    Online: 1.1989 – 31.2019 (GFZ only)
    Print: 1.1989 – 24(3).2012 (Location: A17, Kompaktmagazin, 23/1-2)
    Print: 1.1989 – 24(6).2012 (Location: A43, Archiv Regal 17)
    Formerly as: Fortschritte der Mineralogie  (1947–1988)
    Publisher: Schweizerbart Science Publishers , GeoScienceWorld
    Corporation: Deutsche Mineralogische Gesellschaft, DMG , Società Italiana di Mineralogia e Petrologia , Société Française de Minéralogie et de Cristallographie , European Mineralogical Union
    Print ISSN: 0935-1221
    Electronic ISSN: 1617-4011
    Topics: Geosciences
    Keywords: GeoScienceWorld ; mineralogy
    Acronym: EJM
    Abbreviation: Eur J Mineral
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    Terrigenia
    Online: 1.2007 – 6.2013
    Publisher: Terrigenia
    Description: Geochemie a mineralogie („Geochemistry and mineralogy“) is an electronic journal which publishes original articles as well as reviews; the latter, however, must bring substantial amount of new information gained from the summarized data.
    Electronic ISSN: 1802-9604
    Topics: Chemistry and Pharmacology , Geosciences
    Keywords: Geochemie ; Mineralogie ; Tschechische Republik ; geochemistry ; mineralogy ; Czech Republic
    Parallel titles: Geochemistry and Mineralogy
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    Mineralogical Society of America (MSA) | Geochemical Society | GeoScienceWorld
    Online: 39.2000 – (GFZ only)
    Print: 2.1983 – 69.2008 (Location: A17, Lesesaal, 11)
    Formerly as: Reviews in Mineralogy  (1980–1999)
    Publisher: Mineralogical Society of America (MSA) , Geochemical Society , GeoScienceWorld
    Print ISSN: 1529-6466
    Electronic ISSN: 1943-2666
    Topics: Geosciences
    Keywords: GeoScienceWorld ; mineralogy ; geochemistry
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    Cambridge University Press; Mineralogical Society of Great Britain & Ireland | GeoScienceWorld | formerly de Gruyter
    Online: 61(285).1997 –
    Print: 33.1964 – 71.2007 (Location: A17, Kompaktmagazin, 47/5-7)
    Publisher: Cambridge University Press; Mineralogical Society of Great Britain & Ireland , GeoScienceWorld , formerly de Gruyter
    Corporation: Mineralogical Society of Great Britain and Ireland
    Print ISSN: 0026-461X
    Electronic ISSN: 1471-8022
    Topics: Geosciences
    Keywords: GeoScienceWorld ; mineralogy
    Acronym: MinMag
    Abbreviation: Mineral Mag
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    Akademija Nauk SSSR
    Print: 1968 – 1994 (Location: A18, 5/3)
    Publisher: Akademija Nauk SSSR
    Print ISSN: 0044-1805
    Topics: Geosciences
    Keywords: Mineralogie ; mineralogy
    Parallel titles: Zapiski Vsesoi︠u︡znogo mineralogicheskogo obshchestva
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