翡翠的漫反射红外光谱特征及其对翡翠鉴定  

THE FEATURES OF DIFFUSE REFLECTANCE INFRARDE SPECTROSCOPY OF JADEITE AND ITS UTILIZATION IN DETERMINING JADEITE

作　　者：宋绵新[1] 潘兆橹[2] 

机构地区：[1]西南科技大学先进建筑材料四川省重点实验室,绵阳621010 [2]中国地质大学,北京100083

出　　处：《中国矿业》2004年第12期78-80,共3页China Mining Magazine

摘　　要：天然翡翠的漫反射红外光谱主要吸收范围在400cm-1-1200cm-1内,其中1190cm-1,1130cm-1,965cm-1,595cm-1,525cm-1左右处的吸收峰为翡翠漫反射红外光谱的特征吸收峰。在3535-3620cm-1的范围内有一宽的吸收带,这可能是由于角闪石的羟基振动引起的。2920cm-1和2850cm-1附近的峰属于蜡或其它有机物引起的,这是天然翡翠蜡或其它有机物抛光后所展示的特点。通过峰的相对强度可估计蜡或其它有机物的含量。具有特殊基团的高分子聚合物充填的B货,最特征的收峰在3060、2966、2931、2857cm-1处。不同有机物充填的翡翠,它的红外光谱峰的位置和强度是有所区别的,据此可鉴定不同档次的翡翠。The absorption range of diffuse reflectance infrared spectroscopy of natural jadeite are 400cm-1-1200cm-1. the absorption bands at 1190cm-1, 1130cm-1, 965cm-1, 595cm-1, 525cm-1 are the characteristic absorption peak of diffuse reflectance infrared spectroscopy of natural jadeite. The absorption spectra bands at 34535 - 3620cm-1 belong probably to OH- stretching bands of hornblende, the absorption bands of organic wax are at 2920cm-1 and 2850cm-1, which is features of natural jadeite polished with max or other organics. The wax or other organics content can be calculated on the basis of band intensity. The characteristic bands of jadeite B filled by high polymer with special group are at 3060、2966、2931、2857cm-1. The band location and intensity of jadeite filled by various materials are different. The types of jadeite can be determined on the feature band's location and band intensity.

关 键 词：翡翠 红外光谱特征 鉴定 

分 类 号：J314.9[艺术—美术]