光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2014年
12期
3411-3414
,共4页
黄龙玉%红外吸收光谱%拉曼光谱%振动光谱%XRD
黃龍玉%紅外吸收光譜%拉曼光譜%振動光譜%XRD
황룡옥%홍외흡수광보%랍만광보%진동광보%XRD
Huanglong jade%Infrared absorption spectrum%Raman spectrum%Vibration spectrum%XRD
黄龙玉是云南省龙陵县近年发现的新玉石品种,在国内市场热度较高。目前对其矿物组成和光谱特征还未有报道。在常规的宝石学测试基础上,重点采用激光拉曼光谱仪、红外光谱仪和X射线粉晶衍射(X RD )分析方法,对其振动光谱特征和矿物组成进行了细致的研究。结果表明,黄龙玉显示典型的石英质玉石的振动光谱特征,主要红外吸收谱带位于1162,1076,800,779,691,530和466 cm -1处,分别属于Si—O—Si非对称伸缩振动、Si—O—Si对称伸缩振动、Si—O—Si弯曲振动。其中在800 cm -1附近谱带有分裂,表明黄龙玉结晶程度较好。拉曼光谱中,归属Si—O—Si弯曲振动的谱带强度较高,主要拉曼散射峰为463和355 cm -1。XRD结果证实,其矿物组成为较纯的石英,红色样品中还含有微量的赤铁矿,是其产生红色的原因。这是首次系统研究黄龙玉的红外光谱、拉曼光谱及XRD谱学特征,为其鉴定、定名及后续的研究提供科学依据。
黃龍玉是雲南省龍陵縣近年髮現的新玉石品種,在國內市場熱度較高。目前對其礦物組成和光譜特徵還未有報道。在常規的寶石學測試基礎上,重點採用激光拉曼光譜儀、紅外光譜儀和X射線粉晶衍射(X RD )分析方法,對其振動光譜特徵和礦物組成進行瞭細緻的研究。結果錶明,黃龍玉顯示典型的石英質玉石的振動光譜特徵,主要紅外吸收譜帶位于1162,1076,800,779,691,530和466 cm -1處,分彆屬于Si—O—Si非對稱伸縮振動、Si—O—Si對稱伸縮振動、Si—O—Si彎麯振動。其中在800 cm -1附近譜帶有分裂,錶明黃龍玉結晶程度較好。拉曼光譜中,歸屬Si—O—Si彎麯振動的譜帶彊度較高,主要拉曼散射峰為463和355 cm -1。XRD結果證實,其礦物組成為較純的石英,紅色樣品中還含有微量的赤鐵礦,是其產生紅色的原因。這是首次繫統研究黃龍玉的紅外光譜、拉曼光譜及XRD譜學特徵,為其鑒定、定名及後續的研究提供科學依據。
황룡옥시운남성룡릉현근년발현적신옥석품충,재국내시장열도교고。목전대기광물조성화광보특정환미유보도。재상규적보석학측시기출상,중점채용격광랍만광보의、홍외광보의화X사선분정연사(X RD )분석방법,대기진동광보특정화광물조성진행료세치적연구。결과표명,황룡옥현시전형적석영질옥석적진동광보특정,주요홍외흡수보대위우1162,1076,800,779,691,530화466 cm -1처,분별속우Si—O—Si비대칭신축진동、Si—O—Si대칭신축진동、Si—O—Si만곡진동。기중재800 cm -1부근보대유분렬,표명황룡옥결정정도교호。랍만광보중,귀속Si—O—Si만곡진동적보대강도교고,주요랍만산사봉위463화355 cm -1。XRD결과증실,기광물조성위교순적석영,홍색양품중환함유미량적적철광,시기산생홍색적원인。저시수차계통연구황룡옥적홍외광보、랍만광보급XRD보학특정,위기감정、정명급후속적연구제공과학의거。
Based on the conventional test methods ,the infrared absorption spectrum ,Raman spectrum and X-ray diffraction (XRD) were employed to study the characters of the vibration spectrum and mineral composition of Huanglong jade .The testing results show that Huanglong jade shows typical vibrational spectrum characteristics of quartziferous jade .The main infrared ab-sorption bands at 1 162 ,1 076 ,800 ,779 ,691 ,530 and 466 cm -1 were induced by the asymmetric stretching vibration ,symmet-rical stretching vibration and bending vibration of Si -O-Si separately .Especially the absorption band near 800 cm-1 is split , which indicates that Huanglong jade has good crystallinity .In Raman spectrum ,the main strong vibration bands at 463 and 355 cm -1 were attributed to bending vibration of Si—O—Si .XRD test confirmed that Quartz is main mineral composition of Huan-glong jade and there is a small amount of hematite in red color samples which induced the red color of Huanglong jade .This is the first report on the infrared ,Raman and XRD spectra feature of Huanglong jade .It will provide a scientific basis for the iden-tification ,naming and other research for huanglong jade .