期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 828, 期 1-3, 页码 80-90出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2006.05.040
关键词
magnesium calcite; biomineral; microRaman; PXRD; sea urchin
This study concerns Mg-calcite characterization (and in particular molecular structure and microstructural studies of mineral phases) of a sea urchin mineralised test and spines. Sea urchins are spiny sea animals (kingdom Animalia, phylum Echinodermata, class Echinoidea). Microscopic observations, SEM, EDS, PXRD and spectroscopic microRaman methods have been applied to characterize the biomineral parts of the sea urchin. The latter technique is very useful in research of biological systems and especially suitable for monitoring differences within biomineral phases exhibiting varieties of morphological forms. Crystalline magnesium calcium carbonate, MgxCa1-xCO3 (magnesian calcite; space group R-3cH; a = 4.9594(8) angstrom, c = 16.886(6) angstrom), has been identified as the predominant biomineral component. (c) 2006 Elsevier B.V. All rights reserved.
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