Spectroscopy and Spectral Analysis, Volume. 32, Issue 2, 398(2012)
Vibrational Spectra of Hetian Nephrite from Xinjiang
In previous studies, EMPA, PIXE and others were employed to study the chemical compositions of nephrite separately without a systematical measurement. In the present study, XRF, XRD, IR and LR were used together to examine chemical and spectra characteristics of white, green and black nephrite from Hetian, Xinjiang. XRD results indicate that all nephrite samples consist of tremolite. Then IR spectra of nephrite samples suggest that the M—OH stretching vibration bands show that the M1 and M3 sites are not only occupied by Mg2+ and Fe2+, but also by Fe3+, which is consistent with the chemical compositions of these samples. This information might be useful to understanding the variety of nephrite. Their Raman spectra are almost the same, while some differences exist because of different content of FeO/Fe2O3.
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ZHANG Yong-wang, LIU Yan, LIU Tao-tao, Muhetaer Zari, LIU Yuan-qing. Vibrational Spectra of Hetian Nephrite from Xinjiang[J]. Spectroscopy and Spectral Analysis, 2012, 32(2): 398
Received: Apr. 18, 2011
Accepted: --
Published Online: Feb. 20, 2012
The Author Email: Yong-wang ZHANG (zyw75@126.com)