Abstract
Recently, the results of experimental and theoretical investigations have revealed that, in vaterite, two or even more crystalline structures coexist. In this communication we report evidence of diverse vaterite structures in biogenic samples of different origin. In addition, it is shown that the synthetic vaterite precipitated in the presence of poly-l-aspartate has structures similar to those of biogenic samples.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Calcium Carbonate / chemical synthesis
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Calcium Carbonate / chemistry*
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Calcium Chloride / chemistry
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Calorimetry, Differential Scanning
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Carbonates / chemistry
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Chemical Precipitation
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Crystallization
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Cyprinidae
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Microscopy, Electron, Scanning
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Molecular Structure
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Peptides / chemistry
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Sodium Bicarbonate / chemistry
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Spectroscopy, Fourier Transform Infrared
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Unionidae
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Urochordata
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X-Ray Diffraction
Substances
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Carbonates
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Peptides
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polyaspartate
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sodium carbonate
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Sodium Bicarbonate
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Calcium Carbonate
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Calcium Chloride