Study on the Microstructure of the Pinctada martensii Pearls and Its Significance
Joint Authors
Zhang, Liping
Yang, Zhijun
Hou, Weisheng
Wu, Wenlong
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The results of a microscopy, SEM-EDS, XRD, FTIR, and Raman spectra study of the nacres of the Pinctada martensii pearls from Zhanjiang city, China shows that they can be classified as the high-quality, medium-quality, and inferior-quality pearls.
Aragonite, the main inorganic mineralogy in the nacres, was crystallized and grown up in the compartments formed by the silk and radial organic sheets originating from organic matters secreted by the mantle of mollusks.
The crystalline orientations of aragonite tablets were changed from the (002), (012) and (102) crystalline plane nets in the early to the (002) crystalline plane net only in the later.
The formation processes of the microstructure of the nacres could be divided into three stages.
In the early stage, the precursor particles of aragonite nucleated and grew up fast; then, porous aragonite aggregates consisting of the fine aragonite crystals were formed.
In the middle stage, the aragonite crystals directionally grew up to form the aragonite tablets and microlayers.
The surface of the aragonite tablets and microlayers are rough and few porous, and the edges of the crystals were serrated.
In the last stage, the aragonite tablets in the aragonite microlayer mixed perfectly together to form high-quality aragonite layer whose surface was smooth and perfect.
American Psychological Association (APA)
Wu, Wenlong& Zhang, Liping& Yang, Zhijun& Hou, Weisheng. 2012. Study on the Microstructure of the Pinctada martensii Pearls and Its Significance. ISRN Spectroscopy،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-496228
Modern Language Association (MLA)
Wu, Wenlong…[et al.]. Study on the Microstructure of the Pinctada martensii Pearls and Its Significance. ISRN Spectroscopy No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-496228
American Medical Association (AMA)
Wu, Wenlong& Zhang, Liping& Yang, Zhijun& Hou, Weisheng. Study on the Microstructure of the Pinctada martensii Pearls and Its Significance. ISRN Spectroscopy. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-496228
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496228