Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico
BACKGROUND Blue amber is mainly produced in the Dominican Republic, Mexico and Myanmar. Generally speaking, the formation mechanism, composition and spectral characteristics of blue amber are closely related to its specific geographical environment. Therefore, the study on the origin of blue amber h...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2022-03-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.202108040092 |
| _version_ | 1797953933561298944 |
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| author | LIU Jinhua ZHANG Jian YAN Xuejun HUANG Xuebing XU Jiang JIANG Xinran YAN Jun |
| author_facet | LIU Jinhua ZHANG Jian YAN Xuejun HUANG Xuebing XU Jiang JIANG Xinran YAN Jun |
| author_sort | LIU Jinhua |
| collection | DOAJ |
| description | BACKGROUND Blue amber is mainly produced in the Dominican Republic, Mexico and Myanmar. Generally speaking, the formation mechanism, composition and spectral characteristics of blue amber are closely related to its specific geographical environment. Therefore, the study on the origin of blue amber has become a hot topic in the field of gemology, archaeology and biological mineralogy, and the origin of geographical districts of blue amber has become a hot research topic. Previous studies mainly used infrared spectroscopy, X-ray fluorescence spectroscopy, mass spectrometry, and isotope tracing to carry out a relatively systematic study on the origin of blue amber, but were limited to the similarity of blue amber, and the spectral characteristics of blue amber from different origins showing similarities. Due to the low popularity of the application of some detection devices, the application of the detection method based on the above-mentioned corresponding devices is greatly limited. OBJECTIVES To identify photoluminescence (PL), Raman spectroscopy and trace element characteristics of blue amber with different origins. METHODS Photoluminescence and Raman spectroscopy combined with trace element analysis were used to study the spectral and elemental occurrence characteristics of blue amber from Dominican Republic and Mexico. RESULTS The results showed that: (1)At room temperature, using PL spectrum with 405nm as the excitation wavelength, the peaks at 450, 475 and 502nm appeared simultaneously for blue amber from Dominican Republic. In contrast, there was no significant characteristic peak in Mexican blue amber. The differences in PL spectrum of blue amber from the two origins can be used as a direct basis for the traceability and identification of its origin. (2)Using the Raman spectrum with 785nm as the excitation wavelength, the Raman peaks of blue amber from Dominican Republic at about 154, 468, 901, 1177 and 1312cm-1 were more prominent or sharper than those from Mexico. The ratio of the peak intensity at 1653 and 1446cm-1 (N=I1653/I1446) in the corresponding spectrum of the amber from Dominican Republic was significantly higher than that from Mexico. (3)Trace elements of S, Si, Fe and Cu were present in the blue amber from the two regions, and the content was S>Si>Fe>Cu. The content of Cu in blue amber from Dominican Republic was generally higher than that from Mexico. Therefore, the occurrence and content characteristics of Cu can be used as one of the evidences for the traceability of Dominican blue amber. CONCLUSIONS The research work provides theoretical and technical support for the origin of blue amber with different geographical locations. It can also provide a salutary reference for identification of the geographical location for other gems. |
| first_indexed | 2024-04-10T23:10:52Z |
| format | Article |
| id | doaj.art-276f1dcb0357429283cfde5fff1d221a |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T23:10:52Z |
| publishDate | 2022-03-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-276f1dcb0357429283cfde5fff1d221a2023-01-13T05:42:00ZengScience Press, PR ChinaYankuang ceshi0254-53572022-03-0141227228010.15898/j.cnki.11-2131/td.202108040092yk202108040092Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and MexicoLIU Jinhua0ZHANG Jian1YAN Xuejun2HUANG Xuebing3XU Jiang4JIANG Xinran5YAN Jun6Zhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaCollege of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaZhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaZhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaZhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaZhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaZhejiang Fangyuan Test Group Co., Ltd., Hangzhou 310013, ChinaBACKGROUND Blue amber is mainly produced in the Dominican Republic, Mexico and Myanmar. Generally speaking, the formation mechanism, composition and spectral characteristics of blue amber are closely related to its specific geographical environment. Therefore, the study on the origin of blue amber has become a hot topic in the field of gemology, archaeology and biological mineralogy, and the origin of geographical districts of blue amber has become a hot research topic. Previous studies mainly used infrared spectroscopy, X-ray fluorescence spectroscopy, mass spectrometry, and isotope tracing to carry out a relatively systematic study on the origin of blue amber, but were limited to the similarity of blue amber, and the spectral characteristics of blue amber from different origins showing similarities. Due to the low popularity of the application of some detection devices, the application of the detection method based on the above-mentioned corresponding devices is greatly limited. OBJECTIVES To identify photoluminescence (PL), Raman spectroscopy and trace element characteristics of blue amber with different origins. METHODS Photoluminescence and Raman spectroscopy combined with trace element analysis were used to study the spectral and elemental occurrence characteristics of blue amber from Dominican Republic and Mexico. RESULTS The results showed that: (1)At room temperature, using PL spectrum with 405nm as the excitation wavelength, the peaks at 450, 475 and 502nm appeared simultaneously for blue amber from Dominican Republic. In contrast, there was no significant characteristic peak in Mexican blue amber. The differences in PL spectrum of blue amber from the two origins can be used as a direct basis for the traceability and identification of its origin. (2)Using the Raman spectrum with 785nm as the excitation wavelength, the Raman peaks of blue amber from Dominican Republic at about 154, 468, 901, 1177 and 1312cm-1 were more prominent or sharper than those from Mexico. The ratio of the peak intensity at 1653 and 1446cm-1 (N=I1653/I1446) in the corresponding spectrum of the amber from Dominican Republic was significantly higher than that from Mexico. (3)Trace elements of S, Si, Fe and Cu were present in the blue amber from the two regions, and the content was S>Si>Fe>Cu. The content of Cu in blue amber from Dominican Republic was generally higher than that from Mexico. Therefore, the occurrence and content characteristics of Cu can be used as one of the evidences for the traceability of Dominican blue amber. CONCLUSIONS The research work provides theoretical and technical support for the origin of blue amber with different geographical locations. It can also provide a salutary reference for identification of the geographical location for other gems.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.202108040092blue amberorigin traceabilityphotoluminescence spectroscopyraman spectroscopyx-ray fluorescence spectrometrytrace elementscopper |
| spellingShingle | LIU Jinhua ZHANG Jian YAN Xuejun HUANG Xuebing XU Jiang JIANG Xinran YAN Jun Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico Yankuang ceshi blue amber origin traceability photoluminescence spectroscopy raman spectroscopy x-ray fluorescence spectrometry trace elements copper |
| title | Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico |
| title_full | Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico |
| title_fullStr | Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico |
| title_full_unstemmed | Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico |
| title_short | Characteristics of Photoluminescence and Raman Spectra, and the Occurrence of Trace Elements of Blue Amber from Dominican Republic and Mexico |
| title_sort | characteristics of photoluminescence and raman spectra and the occurrence of trace elements of blue amber from dominican republic and mexico |
| topic | blue amber origin traceability photoluminescence spectroscopy raman spectroscopy x-ray fluorescence spectrometry trace elements copper |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.202108040092 |
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