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1. Full Text Nucleation of metastable aragonite CaCO₃ in seawater
by Wenhao Sun and Saivenkataraman Jayaraman and Wei Chen and Kristin A. Persson and Gerbrand Ceder and Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, 3/2015, Volume 112, Issue 11, pp. 3199 - 3204
Predicting the conditions in which a compound adopts a metastable structure when it crystallizes out of solution is an unsolved and fundamental problem in... 
Nucleation | Solid solution-aqueous solution equilibria | Surface energy | Calcium carbonate | Polymorphism | CRYSTALLIZATION | surface energy | AMORPHOUS CALCIUM-CARBONATE | MULTIDISCIPLINARY SCIENCES | AB-INITIO | ELECTRON-MICROSCOPY | polymorphism | ENERGY CALCULATIONS | nucleation | MAGNESIUM | calcium carbonate | THERMODYNAMICS | CLUSTERS | DISSOLUTION | GROWTH | solid solution-aqueous solution equilibria | RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY | solid solution–aqueous solution equilibria | MATERIALS SCIENCE | Physical Sciences
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2. Full Text Biological control of aragonite formation in stony corals
by Von Euw, Stanislas and Zhang, Qihong and Manichev, Viacheslav and Murali, Nagarajan and Gross, Juliane and Feldman, Leonard C and Gustafsson, Torgny and Flach, Carol and Mendelsohn, Richard and Falkowski, Paul G
Science, ISSN 0036-8075, 06/2017, Volume 356, Issue 6341, pp. 933 - 938
Little is known about how stony corals build their calcareous skeletons. There are two prevailing hypotheses: that it is a physicochemically dominated process... 
EVOLUTION | SKELETAL ORGANIC MATRIX | INTERFACE | AMORPHOUS CALCIUM-CARBONATE | MULTIDISCIPLINARY SCIENCES | GROWTH | CLIMATE-CHANGE | CALCIFICATION | NACRE | SCLERACTINIAN CORAL | OCEAN ACIDIFICATION | Anthozoa - ultrastructure | Microscopy, Electron, Scanning | Animals | Anthozoa - growth & development | Anthozoa - physiology | Carbonates - analysis | Magnetic Resonance Spectroscopy | Crystallization | Calcification, Physiologic - physiology | Cellular Microenvironment - physiology | Nonlinear Optical Microscopy | Calcium Carbonate - metabolism | Nuclear magnetic resonance spectroscopy | Pests | Biological control | Methods | Crystal growth | Enrichment | Nucleation | Nuclear magnetic resonance--NMR | Carbon dioxide | Acidification | Spectroscopic analysis | Attachment | Amorphous materials | Nanoparticles | Magnetic resonance spectroscopy | Proteins | Spectrum analysis | Imaging | Deposition | Crystal structure | Spectroscopy | Construction | Corals | Chemical precipitation | Organic chemistry | Aragonite | Hypotheses | Calcification | Microenvironments | Resonance | Nuclear magnetic resonance | Minerals
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3. Full Text Highly oriented aragonite nanocrystal-biopolymer composites in an aragonite brick of the nacreous layer of Pinctada fucata
by Takahashi, Kazuyuki and Yamamoto, Hitoshi and Onoda, Akira and Doi, Mototsugu and Inaba, Takashi and Inaba, Takashi and Chiba, Masahiko and Chiba, Masahiko and Kobayashi, Atsuko and Kobayashi, Atsuko and Taguchi, Takahisa and Taguchi, Takahisa and Okamura, Taka-Aki and Ueyama, Norikazu
Chemical Communications, ISSN 1359-7345, 04/2004, Volume 4, Issue 8, pp. 996 - 997
C-13 CP/MAS NMR and FE/TEM measurements of the aragonite brick of the nacreous layer of Pinctada fucata indicate that it assembles with highly oriented... 
O HYDROGEN-BOND | BINDING | CHEMISTRY, MULTIDISCIPLINARY | CALCIUM-CARBONATE
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4. Full Text Highly oriented aragonite nanocrystal-biopolymer composites in an aragonite brick of the nacreous layer of Pinctada fucata
by Takahashi, Kazuyuki and Yamamoto, Hitoshi and Onoda, Akira and Doi, Mototsugu and Inaba, Takashi and Chiba, Masahiko and Kobayashi, Atsuko and Taguchi, Takahisa and Okamura, Taka-aki and Ueyama, Norikazu
Chemical communications (Cambridge, England), ISSN 1359-7345, 04/2004, Issue 8, pp. 996 - 997
13C CP/MAS NMR and FE/TEM measurements of the aragonite brick of the nacreous layer of Pinctada fucata indicate that it assembles with highly oriented... 
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5. Full Text Water as the Key to Proto‐Aragonite Amorphous CaCO3
by Farhadi‐Khouzani, Masoud and Chevrier, Daniel M and Zhang, Peng and Hedin, Niklas and Gebauer, Denis and Stockholms universitet and Naturvetenskapliga fakulteten and Institutionen för material- och miljökemi (MMK)
Angewandte Chemie International Edition, ISSN 1433-7851, 07/2016, Volume 55, Issue 28, pp. 8117 - 8120
Temperature and pH value can affect the short‐range order of proto‐structured and additive‐free amorphous calcium carbonates (ACCs). Whereas a distinct change... 
polyamorphism | biomineralization | amorphous calcium carbonate | NMR spectroscopy | water | NANOPARTICLES | PHASE | CLUSTERS | NONCLASSICAL NUCLEATION | GROWTH | CHEMISTRY, MULTIDISCIPLINARY | CALCIUM-CARBONATE | Nuclear magnetic resonance spectroscopy | Calcite crystals | Structure | Analysis | Crystals | Calcium carbonate | Binding | Infrared spectroscopy | Water chemistry | Temperature | Nuclear magnetic resonance--NMR | Calcium | Amorphous structure | Ions | Spectroscopic analysis | Calcite | Aragonite | X rays | Temperature effects | pH | Infrared radiation | Short range order | Carbonates | Crystal structure | Symmetry | Naturvetenskap | Kemi | Natural Sciences | Chemical Sciences
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6. Full Text Amorphous Layer around Aragonite Platelets in Nacre
by Nadine Nassif and Nicola Pinna and Nicole Gehrke and Markus Antonietti and Christian Jäger and Helmut Cölfen
Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, 9/2005, Volume 102, Issue 36, pp. 12653 - 12655
We reveal that the aragonite CaCO platelets in nacre of Haliotis laevigata are covered with a continuous layer of disordered amorphous CaCO and that there is... 
Proteins | Protons | Aragonite | Biomineralogy | Physical Sciences | Rotational spectra | Crystals | Materials | Carbonates | Platelets | Coatings | Biomineralization | Solid-state NMR | Amorphous calcium carbonate | High-resolution transmission EM | PHASE | solid-state NMR | SHELL | biomineralization | high-resolution transmission EM | MULTIDISCIPLINARY SCIENCES | amorphous calcium carbonate | PROTEINS | Microscopy, Electron, Transmission | Animals | Mollusca - ultrastructure | Protein Binding | Calcium Carbonate - metabolism | Mollusca - chemistry | Calcium Carbonate - chemistry | Biological Sciences
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7. Full Text Nacre Protein Fragment Templates Lamellar Aragonite Growth
by Metzler, Rebecca A and Evans, John Spencer and Killian, Christopher E and Zhou, Dong and Churchill, Tyler H and Appathurai, Narayana P and Coppersmith, Susan N and Gilbert, P. U. P. A
Journal of the American Chemical Society, ISSN 0002-7863, 05/2010, Volume 132, Issue 18, pp. 6329 - 6334
Proteins play a major role in the formation of all biominerals. In mollusk shell nacre, complex mixtures and assemblies of proteins and polysaccharides were... 
EXTRAPALLIAL FLUID | SHELL | BIOMINERALIZATION | MECHANISM | MATRIX PROTEIN | PEARL OYSTER | PURIFICATION | MOLLUSK | NUCLEATION | CHEMISTRY, MULTIDISCIPLINARY | CALCIUM-CARBONATE | Protein Structure, Tertiary | Amino Acid Sequence | Peptide Fragments - chemistry | Peptide Fragments - metabolism | Pinctada | Animals | Molecular Sequence Data | Calcium Carbonate - metabolism | Binding Sites | Calcium Carbonate - chemistry | Proteins | Polysaccharides | Crassostrea | Analysis | Physiological aspects | Oysters | Chemical properties | Structure | Calcite | Protein binding
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8. Full Text Transformation of amorphous calcium carbonate into aragonite
by Zhang, Zhuona and Xie, Yidong and Xu, Xurong and Pan, Haihua and Tang, Ruikang
Journal of Crystal Growth, ISSN 0022-0248, 03/2012, Volume 343, Issue 1, pp. 62 - 67
Amorphous calcium carbonate (ACC) is one of the important precursors of calcium carbonate crystal phases and its transformation plays key roles in... 
A1. Crystallites | B1. Calcium compound | A1. Recrystallization | B1. Minerals | CRYSTALLIZATION | RAY-ABSORPTION SPECTROSCOPY | PHYSICS, APPLIED | BIOMINERALIZATION | MINERAL PHASE | MATERIALS SCIENCE, MULTIDISCIPLINARY | CRYSTALLOGRAPHY | Minerals | RAMAN SPECTROSCOPY | Crystallites | PHASE-TRANSFORMATION | ROLES | Calcium compound | CRYSTAL-GROWTH | Recrystallization | ORIENTED ATTACHMENT | SYSTEMS | Carbonate minerals | Calcite crystals | Biological products | Carbonates | Calcium carbonate | Aragonite | Self assembly | Nanocrystals | Biomineralization | Monitors | Transformations | Magnesium
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9. Full Text Calcium isotope fractionation in calcite and aragonite
by Gussone, Nikolaus and Böhm, Florian and Eisenhauer, Anton and Dietzel, Martin and Heuser, Alexander and Teichert, Barbara M.A and Reitner, Joachim and Wörheide, Gert and Dullo, Wolf-Christian
Geochimica et Cosmochimica Acta, ISSN 0016-7037, 2005, Volume 69, Issue 18, pp. 4485 - 4494
Calcium isotope fractionation was measured on skeletal aragonite and calcite from different marine biota and on inorganic calcite. Precipitation temperatures... 
TRACE-ELEMENT | GEOCHEMISTRY & GEOPHYSICS | THERMODYNAMICS | CARBONATES | TEMPERATURE | DELTA-CA-44 | MC-ICP-MS | SEAWATER | PRECIPITATION RATE | DEGREES-C | RATIO MEASUREMENTS | Aragonite | Calcite crystals | Rain and rainfall | Analysis | Calcium carbonate
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10. Full Text Uranium isotope fractionation during coprecipitation with aragonite and calcite
by Chen, Xinming and Romaniello, Stephen J and Herrmann, Achim D and Wasylenki, Laura E and Anbar, Ariel D
Geochimica et Cosmochimica Acta, ISSN 0016-7037, 09/2016, Volume 188, pp. 189 - 207
Natural variations in U/ U of marine calcium carbonates might provide a useful way of constraining redox conditions of ancient environments. In order to... 
U isotopes | Paleoredox | Speciation | Calcium carbonate | ORE-DEPOSITS | TRACE-METALS | ANCIENT OCEAN | REDOX PROXY | URANYL INCORPORATION | AQUEOUS-SOLUTION | GEOCHEMISTRY & GEOPHYSICS | OCEAN OXYGENATION | SECULAR VARIATION | U(VI) SORPTION | PERMIAN MASS EXTINCTION | Calcite crystals | Uranium | Analysis | Sea-water
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11. Full Text Magnesium stable isotope fractionation in marine biogenic calcite and aragonite
by Wombacher, F and Eisenhauer, A and Böhm, F and Gussone, N and Regenberg, M and Dullo, W.-Chr and Rüggeberg, A
Geochimica et Cosmochimica Acta, ISSN 0016-7037, 2011, Volume 75, Issue 19, pp. 5797 - 5818
This survey of magnesium stable isotope compositions in marine biogenic aragonite and calcite includes samples from corals, sclerosponges, benthic porcelaneous... 
MG ISOTOPES | GEOCHEMISTRY & GEOPHYSICS | COCCOLITHOPHORES EMILIANIA-HUXLEYI | TRACE-ELEMENTS | CRYSTAL-GROWTH | CACO3 BIOMINERALIZATION | MC-ICP-MS | SEAWATER-CHEMISTRY | EQUILIBRIUM FRACTIONATION | CA ISOTOPES | PLANKTONIC-FORAMINIFERA | Coccoliths | Corals | Analysis | Calcium carbonate | Calcite crystals | Precipitation (Meteorology) | Sea-water | Fractionation | Mathematical models | Cations | Magnesium | Isotopes | Calcite
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12. Full Text Solid‐State Transformation of Amorphous Calcium Carbonate to Aragonite Captured by CryoTEM
by Walker, Jessica M and Marzec, Bartosz and Nudelman, Fabio
Angewandte Chemie International Edition, ISSN 1433-7851, 09/2017, Volume 56, Issue 39, pp. 11740 - 11743
Early‐stage reaction mechanisms for aragonite‐promoting systems are relatively unknown compared to the more thermodynamically stable calcium carbonate... 
calcium carbonate | crystal growth | non-classical crystallization | biomineralization | cryo-electron microscopy | CRYSTALLIZATION | PRECURSOR PHASE | MECHANISM | STABILIZATION | STABILITY | CACO3 | CHEMISTRY, MULTIDISCIPLINARY | CLUSTERS | CRYSTAL-GROWTH | NUCLEATION | MORPHOLOGY | Thermodynamics | Calcite crystals | Calcium carbonate | Aragonite | Transformation | Calcium | Amorphous materials | Coexistence | Reaction mechanisms | Calcite | Alcohols | Communications | Communication
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13. Full Text Aragonite–calcite veins of the ‘Erzberg’ iron ore deposit (Austria): Environmental implications from young fractures
by Boch, Ronny and Wang, Xianfeng and Kluge, Tobias and Leis, Albrecht and Lin, Ke and Pluch, Hannes and Mittermayr, Florian and Baldermann, Andre and Böttcher, Michael E and Dietzel, Martin and Brasier, Alexander
Sedimentology, ISSN 0037-0746, 02/2019, Volume 66, Issue 2, pp. 604 - 635
The well‐known Erzberg site represents the largest siderite (FeCO3) deposit in the world. It consists of various carbonates accounting for the formation of... 
Aragonite | siderite | vein | carbonate precipitates | sulphide oxidation | clumped isotopes | radiometric U‐Th dating | Erzberg | radiometric U-Th dating | Radioactive dating | Analysis | Siderite | Calcite crystals | Carbonates | Precipitation (Meteorology) | Aquifers | Iron ores | Nucleation | Carbon dioxide | Surfaces | Iron | Water flow | Tectonics | Mineral deposits | Sulfides | Outgassing | Hydrogeochemistry | Diagenesis | Ratios | Veins | Mineralization | Dynamics | Oxidation | Collections | Dating | Isotopes | Gravity | Water infiltration | Chemical precipitation | Alpine environments | Mineral collections | Iron carbonate | Chemical reactions | Laminates | Calcite | Dissolution | Precipitates | Radiometric dating | Sulphides | Meteoric water | Organic chemistry | Fractures | Lamination | Samples | Calcium carbonate | Rocks | Polymorphism
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