四川软玉猫眼的谱学综合鉴定 |
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作者姓名: | 卢保奇 亓利剑 夏义本 |
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作者单位: | 1. 上海大学材料科学与工程学院,上海,200072 2. 中国地质大学珠宝学院,武汉,430074 |
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基金项目: | 本文研究由国家自然科学基金(49772096)和上海市教育委员会发展基金(03AK23)资助 |
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摘 要: | 采用拉曼光谱、傅里叶变换红外光谱、电子探针波谱以及X射线粉晶衍射谱对四川软玉猫眼进行谱学研究。结果表明软玉猫眼主要由透闪石组成。计算所得的平均化学式为:(Ca1.96Na0.02)(Mg4.52Fe0.59Mn0.03)5.14(Si7.92Al0.04)7.96O23]。其红外吸收频率主要出现在940 cm^-1-1105 cm^-1、650 cm^-1-760 cm^-1和450 cm^-1-510 cm^-1范围内。3600cm^-1-3800 cm^-1范围内OH基伸缩振动拉曼谱带分裂,并向低波数方向位移,主要与Mg^2+和Fe^2+的含量有关。
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关 键 词: | 软玉猫眼 拉曼光谱 红外光谱 电子探针波谱 XRD |
Study on the vibration spectra of nephrite cats eye from Sichuan Province |
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Authors: | LU Bao-qi QI Li-jian XIA Yi-ben |
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Institution: | LU Bao-qi, QI Li-jian, XIA Yi-ben ( 1. School of Materials and Engineering, Shanghai University, Shanghai 200072 ; 2.China' s Geological University, Wuhan 430074) |
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Abstract: | Raman spectra, Fourier transform infrared (FTIR) absorption spectra, electron probe micro section analysis(EPMA) and XRD were used to study nephrite cat' s eye from Sichuan province. The results have indicated that the nephrite cat' s eye consists of tremolite, whose chemical composition being ( Ca1.96 Na0.02 ) ( Mg4.52 Fe0.59 Mn0. 03 ) 5. 14 ( Si7. 92 Al0.04 ) 7. 96 O23 ]. The major absorption frequencies of the nephrite cat' s eye have appear around 940cm^-1 - 1105cm^-1, 650cm^-1 - 760cm^-1和 450cm^-1 - 510cm^-1. The division of OH stretch vibration band around 3600cm^-1 -3800cm^-1 shifting to the lower wave -number mainly has connected to the content of Mg^2+ and Fe^2+ . |
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Keywords: | nephrite cat' s eye Raman spectra infrared spectra EPMA XRD |
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