一个新的宝石矿物——草莓红“绿柱石”的振动谱学特征  

A NEW GEM MINERAL—THE VIBRATIONAL SPECTROSCOPIC CHARACTERIZATION OF PEZZOTTAITE

作　　者：廖尚宜[1] 彭明生[1] 

机构地区：[1]中山大学宝石矿物材料研究所,广东广州510275

出　　处：《矿物学报》2005年第1期60-64,共5页Acta Mineralogica Sinica

摘　　要：高铯草莓红"绿柱石"是一种新的宝石矿物,利用振动谱学傅立叶红外光谱和拉曼光谱研究了此矿物中水在隧道结构中的状态,发现三方晶系的草莓红"绿柱石"的振动谱学特征与其它绿柱石有区别,红外光谱中Si O伸缩振动峰位于1039cm-1,两个强度近于相同的Ⅱ型水特征伸缩振动吸收峰位于3591cm-1和3545cm-1,认为与隧道中含高Cs离子有关,其特征拉曼谱峰为1120cm-1和1096cm-1。Cs-rich pezzottaite is a new gem mineral. Vibration spectra-Fourier transform infrared (FTIR) and Raman spectroscopic analyses were used to investigate the types of existence water in the channel site of pezzottaite. Significant differences between pezzottaite and beryl in vibration spectra. In the FTIR spectra of pezzottaite, there is a distinct Si-O vibration peak at 1039 cm^(-1)and 2 similar strength absorption peaks of type Ⅱ water at 3590.9 cm^(-1)and 3544.4 cm^(-1),respectively. It is believed that they are related to the high contents of Cs within the channel. The Raman spectrum of pezzottaite was characterized by the 1120 cm^(-1)and 1096 cm^(-1) bands.

关 键 词：草莓红“绿柱石” 傅立叶红外光谱 拉曼光谱 振动谱学特征 宝石矿物 绿柱石 

分 类 号：P619.281[天文地球—矿床学]