保山南红玛瑙的显微特征研究

Study on Microscopic Characteristics of Baoshan Southern Red Agate

保山南红玛瑙属云南特色珠宝原料,因其地层、矿床差异,具有独特的微观形貌结构;选取断面平整规则的保山南红玛瑙原矿,经超声清洗与真空干燥后进行扫描电镜与能谱分析;结果表明,保山南红玛瑙表面微观形貌结构整体上为石英基底,在石英基底上,部分铝铁矿非均匀分布地堆积在其表面,并观察到少许四川凉山南红玛瑙和辽宁阜新北红玛瑙未见报道的丝状结构。

Baoshan Southern Red Agate is a characteristic jewelry raw material in Yunnan Province,and has a unique micromorphology and microstructure due to the differences in strata and ore deposits.The Baoshan Southern Red Agate with a regular cross section was selected,SEM and EDS analysis were carried out after ultrasonic cleaning and vacuum drying.The results show that the micro-morphological structure of Baoshan Southern Red Agate was a quartz base as a whole,and part of bauxite was unevenly distributed and deposited on the surface of the quartz base,and a few filamentous structures were observed,which have not been reported in Liangshan South Red Agate in Sichuan Province and Fuxin North Red Agate in Liaoning Province.