Spectroscopic characterization of natural corals |
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| Authors: | B?Kaczorowska Email author" target="_blank">A?HacuraEmail author T?Kupka R?Wrzalik E?Talik G?Pasterny A?Matuszewska |
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| Institution: | (1) Institute of Physics, Silesian University, 4 Uniwersytecka St, 40-007 Katowice, Poland;(2) Center of Polymer Chemistry, Polish Academy of Sciences, 34 M. Curie-Sklodowska St, 41-800 Zabrze, Poland;(3) Faculty of Earth Sciences, University of Silesia, 60 B dzi ska St, 41-200 Sosnowiec, Poland |
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| Abstract: | The FTIR, micro-Raman, NMR, and XPS spectra of 25 different natural corals have been compared. Reflectance and transmission absorbance IR and Raman data have been used as rapid and efficient means of classification of natural corals containing aragonite (non-precious white species), calcite (red, pink, precious white species), and organic material (black protein polymer). The combination of reflectance IR and infrared microscopy could serve as a rapid, non-destructive method for distinguishing natural corals from artificial, fake jewels. |
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| Keywords: | Coral FTIR Raman XPS NMR Molecular structure |
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