“樱花雨”石英岩玉的宝石学特征研究  

Gemological Characteristics of“Cherry Rain”Quartzite Jade

作　　者：张维肖 吴思婷 Zhang Weixiao;Wu Siting(Jewellery Department,Tongji Zhejiang College,Jiaxing 314051,Zhejiang,China)

机构地区：[1]同济大学浙江学院珠宝系,浙江嘉兴314051

出　　处：《激光与光电子学进展》2025年第1期344-349,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(41272049);浙江省大学生科技创新活动计划(新苗人才计划)(2024R441A004)。

摘　　要：对两种“樱花雨”石英岩玉进行常规宝石测试、X射线荧光成分分析、红外光谱测试和激光拉曼光谱测试,两种玉石的白色基底部分均为石英。其中一种粉红色主体为蔷薇辉石:红外光谱主要具有1078、962、911 cm^(-1)处Si—O伸缩振动吸收峰、750~550 cm^(-1)范围内五处Si—O弯曲振动吸收峰和550~400 cm^(-1)范围内阳离子配位八面体吸收峰;激光拉曼光谱主要具有669、975、1000 cm^(-1)处[SiO_(4)]四面体振动拉曼位移峰,集合体矿物组成为蔷薇辉石石英岩玉。另外一种粉红色主体为锂电气石:红外光谱存在1359、1306 cm^(-1)处[BO_(3)]^(3-)伸缩振动峰,1115 cm^(-1)处Si—O—Si非对称伸缩振动峰,1033 cm^(-1)处O—Si—O非对称伸缩振动峰,998 cm^(-1)处O—Si—O对称伸缩振动峰,796、721、601 cm^(-1)处Si—O—Si对称伸缩振动峰和507 cm^(-1)附近Si—O弯曲振动或[BO_(3)]^(3-)基团振动吸收峰;激光拉曼光谱存在224、376 cm^(-1)处[Si_(6)O_(18)]^(12-)基团六方环振动位移峰,710 cm^(-1)附近[BO_(3)]^(3-)振动位移峰和1089 cm^(-1)附近Si—O(非桥氧)伸缩振动位移峰,集合体矿物组成为锂电气石石英岩玉。两种矿物集合体的宝石学特征研究为“樱花雨”石英岩玉的鉴定和定名提供了重要依据。Two types of“cherry rain”quartzite jade were analyzed using standard gemological tests,X-ray fluorescence spectrometer,infrared spectroscopy,and laser Raman spectroscopy.The white-base part of both minerals is quartz,while the pink component of one variety is rhodonite and for the other one,it is elbaite.The infrared spectrum exhibits Si—O stretching vibration absorption peaks at 1078 cm^(-1),962 cm^(-1),and 911 cm^(-1),the Si—O bending vibration absorption peaks at five places in the range of 750‒550 cm^(-1),and cationic coordination octahedral absorption peaks in the range of 550‒400 cm^(-1).The laser Raman spectrum primarily shows the[SiO_(4)]tetrahedral vibration Raman displacement peaks at 669 cm^(-1),975 cm^(-1),and 1000 cm^(-1).In the infrared spectrum,notable peaks were observed,including the[BO_(3)]^(3-)stretching vibration peaks at 1359 cm^(-1)and 1306 cm^(-1),Si—O—Si asymmetric stretching vibration peak at 1115 cm^(-1),O—Si—O asymmetric stretching vibration peak at 1033 cm^(-1),O—Si—O symmetric stretching vibration peak at 998 cm^(-1),Si—O—Si symmetric stretching vibration peaks at 796 cm^(-1),721 cm^(-1),and 601 cm^(-1),and the Si—O bending vibration or[BO_(3)]^(3-)group vibration absorption peak near 507 cm^(-1).The laser Raman spectra reveal vibration displacement peaks of the[Si_(6)O_(18)]^(12-)group hexagonal ring at 224 cm^(-1)and 376 cm^(-1),a[BO_(3)]^(3-)vibration displacement peak around 710 cm^(-1),and a stretching vibration displacement peak of Si—O(non-bridging oxygen)near 1089 cm^(-1).This indicates that the mineral composition of the aggregate is elbaite quartzite jade.The gemological characteristics of these two mineral aggregates are crucial for the identification and classification of“cherry rain”quartzite jade.

关 键 词：蔷薇辉石 锂电气石 “樱花雨”石英岩玉 宝石学特征 

分 类 号：P575.4[天文地球—矿物学]