| 四川蛇纹石猫眼的红外吸收光谱研究 |
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| 引用本文： | 卢保奇,夏义本,亓利剑.四川蛇纹石猫眼的红外吸收光谱研究[J].上海大学学报(英文版),2005,9(4). |
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| 作者姓名： | 卢保奇 夏义本 亓利剑 |
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| 作者单位： | School of Materials Science and Engineering，Shanghai University，Shanghai 200072，P.R.China，School of Materials Science and Engineering，Shanghai University，Shanghai 200072，P.R.China，Gemmological Institute，China University of Geosciences，Wuhan 430074，P.R.China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina(GrantNo.49772096),theScienceFoundationofShang-haiMunicipalCommissionofEducation(GrantNo.03AK23) |
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| 摘 要： | 1IntroductionSerpentine used as inorganic material inindustry hasbeeninvestigated for many years1-3].But there are noreports on serpentine cat’s eye owing to its rarity.During our recent field investigation in Sichuan Prov-ince,southwest of China,for the first ti me we discov-ered the rare serpentine cat’s eye with well-growntex-ture and,if properly polished,a vivid cat eye effect(see Fig.1).Weng,et al.4]also reported the newdiscovery of nephrite cat’s eyes inthis region.Serpen-tine can…
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Infrared Absorption Spectra of Serpentine Cat's Eye from Sichuan Province of China |
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| LU Bao-Qi,XIA Yi-ben,QI Li-jian.Infrared Absorption Spectra of Serpentine Cat''''s Eye from Sichuan Province of China[J].Journal of Shanghai University(English Edition),2005,9(4). |
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| Authors: | LU Bao-Qi XIA Yi-ben QI Li-jian |
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| Institution: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P.R. China
2. Gemmological Institute, China University of Geosciences, Wuhan 430074, P.R. China |
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| Abstract: | Infrared (IR) absorption spectra and X-ray powder diffraction (XRD) patterns of serpentine cat' s eye from Sichuan Province have been investigated, and infrared absorption bands of the serpentine have been assigned in this paper. The results indicate that the bands near 3 600 - 3 700 cm- 1 belong to the stretching absorption band νoH, the bands in 948 - 1 100 cm- 1 are assigned to the stretching serpentine cat's eye includes two types: chrysotile and antigorite. Chrysotile has a sharp and intensive band at 3 688 cm-1 and a weak band at 3 643 cm-1, while antigorite has only one intensive band in the region. At vibration band νsi-o, chrysotile and antigorite have a similar feature at 1 071 cm-1, but the band at 980 cm-1 in antigorite has been split into two bands in chrysotile - a strong one at 1 027 cm-1 and a weak one at949 cm-1 . In addition, antigorite has a characteristic bending vibrating band δMg-o at570 cm-1 . Based on the analysis of the feature of crystal structure, their IR differences are well explained. |
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| Keywords: | serpentine cat's eye infrared spectrum absorption band assigned |
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