四川平武雪宝顶绿柱石的振动光谱  

Vibrational Spectra of Beryl from Xuebaoding, Pingwu County, Sichuan Province

作　　者：郭延军 王汝成[1,2] 徐士进[1,2] 

机构地区：[1]南京大学内生金属矿床成矿机制研究国家重点实验室 [2]南京大学地球科学系,江苏南京210093

出　　处：《高校地质学报》2000年第2期201-204,共4页Geological Journal of China Universities

基　　金：国家自然科学基金资助项目!(49972 0 6 2 )

摘　　要：自然界中绿柱石晶体多为柱状 ,具板状晶形的绿柱石非常少见。对产于四川雪宝顶云英岩晶洞中的无色透明板状绿柱石及产于雪宝顶蒲口坡石英脉中的绿柱石进行了红外和拉曼光谱分析 ,并与产于阿尔泰三号伟晶岩脉中的柱状绿柱石进行了比较。雪宝顶两个绿柱石的结构通道中的水以II型水为主 ,而阿尔泰绿柱石结构通道中的水以I型水为主。雪宝顶绿柱石中Li对Be的替换也对它的红外及拉曼光谱造成了影响。The natural beryl crystals are commonly prismatic. The t ab ular ones are rarely observed. In this paper is given an example of tabular cry stal of beryl from the Xubaodi ng greisen, which merits a study of IR and Raman spectra and comparisons with tw o prismatic crystal samples of beryl from Xuebaoding quartz vein and Altai pegma tite. Both the tabular and prismatic beryls from Xubaoding are rich in Li and Na, their IR and Raman spectra are very similar, and the channel occupied water is mainly of type II, while the channel occupied water for Altai pegmatite is ma inly of type I. Spectral difference between beryl from Xuebaoding and that from Altai is mainly due to the replacement of Be by Li,which is in fact more strong in beryl from Xuebaoding.

关 键 词：绿柱石 板状晶体 红处光谱 拉曼光谱 振动光谱 

分 类 号：P578.953[天文地球—矿物学]