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《Geology of Anhui》 2018-02
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STUDY ON THE SPECTRAL CHARACTERISTICS OF YELLOW PREHNITE

CHENG Xiao-yu;DAI Hui;CAO Su-qiao;YU Lu;JIANG Xiao-ping;Institute of Geo-analysis of Anhui Province;  
In this paper, we researched the spectral characteristics of yellow prehnite by using Fourie transform infrared spectroscopy, Raman spectroscopy and UV-Vis absorption spectroscopy, combined with polarizing microscope and common gemmogical methods. The prehnite shows typical micro-intertexture structure. Si-O functions caused characteristic infrared absorption peaks and Raman spectra between 900~1100 cm~(-1) and400~800 cm~(-1). While OH~- caused 3495 cm~(-1) infrared absorption peaks and 320 cm~(-1), 390 cm~(-1) Raman spectra. In the UV-Vis absorption spectra, yellow prehnite shows 430 nm and 580 nm bands, so it is inferred that the yellow prehnite may be caused by Fe~(3+).
【CateGory Index】: O657.3;TS933.2
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