Spectroscopy and Spectral Analysis, Volume. 33, Issue 5, 1388(2013)
Spectra of Dark Green Jade from Myanmar
Chemical compositions and spectral characteristics of one type of dark green jades assumed from omphacite jadeite from Myanmar jadeite mining area were studied by X-ray powder diffraction(XRD), X-ray fluorescence spectra(XRF), Raman spectra(RM) and UV-Vis Spectroscopy, etc. Based on testing by XRD and XRF, it was shown that it belongs to iron-enriched plagioclase, including albite and anorthite. The compositions range is between Ab0.731An0.264Or0.004 and Ab0.693An0.303Or0.004. Raman spectra of samples, albite jade and anorthite were collected and analyzed. Additionally, the distributions of Si, Al in the crystal structure were also discussed. UV-Vis spectra showed that dark green hue of this mineral is associated with d—d electronic transition of Fe3+ and Cr3+.
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MAO Jian, CHAI Lin-tao, GUO Shou-guo, FAN Jian-liang, BAO Feng. Spectra of Dark Green Jade from Myanmar[J]. Spectroscopy and Spectral Analysis, 2013, 33(5): 1388
Received: Sep. 10, 2012
Accepted: --
Published Online: May. 21, 2013
The Author Email: Jian MAO (jmao@ecust.edu.cn)