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Structure and composition of the nacre–prisms transition in the shell of Pinctada margaritifera (Mollusca, Bivalvia)

Abstract : A microstructural, mineralogical, and chemical study of the nacre–prisms boundary in the shells of Pinctada margaritifera shows that this boundary is not an abrupt transition, but that there exists a distinct fibrous layer with clear topographic structures and evidence of growth lines. A three-step biomineralization process is proposed that involves changes in the chemical and biochemical composition of the last growth increments of the calcite prisms, formation of the fibrous layer, and development of regular tablets in the nacreous layer.
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https://hal-insu.archives-ouvertes.fr/insu-00378692
Contributor : Yannicke Dauphin <>
Submitted on : Saturday, April 25, 2009 - 3:02:26 PM
Last modification on : Wednesday, September 16, 2020 - 4:56:11 PM

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Yannicke Dauphin, Alexander Ball, Jean-Pierre Cuif, Marine Cotte, Murielle Salomé, et al.. Structure and composition of the nacre–prisms transition in the shell of Pinctada margaritifera (Mollusca, Bivalvia). Analytical and Bioanalytical Chemistry, Springer Verlag, 2008, 390, pp.1659-1669. ⟨10.1007/s00216-008-1860-z⟩. ⟨insu-00378692⟩

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