一种市场名为“紫金砂”材料的宝石学特征  

Gemmological Characteristic of“Zijinsha”(Minuim)

作　　者：汪洲 姚媛 黄家荣 丁竞 WANG Zhou;YAO Yuan;HUANG Jiarong;DING Jing(Guangdong Zhuhai Supervision Testing Institute of Quality and Metrology,Zhuhai,519000,China;Guangdong and Macao Precious Metal and Gemstone Testing Company Limited,Macao 999078,China)

机构地区：[1]广东省珠海市质量计量监督检测所,广东珠海519000 [2]粤澳贵金属及珠宝玉石检测有限公司,中国澳门999078

出　　处：《宝石和宝石学杂志（中英文）》2022年第3期35-43,共9页Journal of Gems & Gemmology

摘　　要：近年来,某直播间出现了一种颜色与辰砂极为相似的产品,其市场名称为“紫金砂”。为了确定该“紫金砂”产品的矿物组成、化学成分及特征,通过常规宝石学测试、能量色散X射线荧光光谱仪、傅里叶变换红外光谱仪、X射线粉末衍射仪、扫描电子显微镜对该类样品进行测试与分析。结果表明,该“紫金砂”产品的折射率为1.53(点测法),密度为3.38 g/cm^(3),主要矿物组成为四氧化三铅和重晶石,另含人造树脂,该产品可能由四氧化三铅粉末加人工树脂固化粘接而成,用于仿制辰砂。In recent years,a kind of product that has very similar colour to cinnabar has appeared in the online shopping broadcast room,and its market name is“Zijinsha”.In this papers,the mineral components,chemical compositions and charateristics of the samples collected were studied by conventional gemmological instruments,X-ray fluorescence spectrometer,Fourier trarsform infrared spectrometer,X-ray powder diffractometer and scanning electronic microscope.The results showed that the refractive index is 1.53,and the density is 3.38 g/cm^(3).The main mineral componens are minuim(Pb_(3)O_(4))(also known as red lead mine)and barite(BaSO_(4)),which are solidified by synthetic resin in order to imitate the cinnabar.

关 键 词：辰砂 四氧化三铅 化学成分 X射线粉末衍射 扫描电子显微镜 

分 类 号：TS93[轻工技术与工程]