金黄色葡萄石的宝石学特征  

Gemological characteristics of golden yellow prehnite

作　　者：成思恩 冯禹 陈德元 CHENG Sien;FENG Yu;CHEN Deyuan(Jieyang branch company of Grand(Shenzhen)Jewellery Identification Center Co.,Ltd.,Jieyang 515500,China;Zhejiang Huazhen Technology Co.,Ltd.,Shaoxing 311800,China)

机构地区：[1]国大(深圳)金银珠宝质量检测中心有限公司揭阳分公司,广东揭阳515500 [2]浙江华珍科技有限公司,浙江绍兴311800

出　　处：《超硬材料工程》2023年第2期61-64,共4页Superhard Material Engineering

摘　　要：葡萄石,因其优质的品质受到人们的喜爱,但市面上出现的金黄色葡萄石尚未有人对其致色机理作出系统研究。选取6个葡萄石样品,其中2个为黄绿色,4个为金黄色,通过常规鉴定仪器、傅里叶红外光谱仪、紫外-可见分光光度计、X射线荧光光谱仪系统地对葡萄石样品进行测试分析,研究其致色机理。测试结果表明,黄绿色葡萄石较金黄色葡萄石,在580 nm处存在宽吸收峰,而金黄色葡萄石在200~450 nm处的吸收更强。葡萄石的颜色成因与Fe元素价态相关,Mn元素可能存在影响。Prehnite is loved by people for its high quality,but no one has systematically studied the color-causing mechanism of golden yellow prehnite in the market.Six prehnite samples,two yellow-green and four golden yellow ones,are systematically tested and analyzed by conventional identification instruments,fourier transform infrared spectrometer,ultravioletvisible spectrophotometer and X-ray fluorescence spectrometer.The mechanism of colouration mechanism of the prehnit isstudied.The test result shows that the absorption peak of yellow-green prehnite is wider at 580 nm than that of yellow-green prehnite,while the absorption peak of yellow-green prehnit is stronger at 200 nm-450 nm.The color origin of prehnite is related to the valence state of ferrum element,and manganese element may have influence on it as well.

关 键 词：葡萄石 宝石学特征 致色机理 

分 类 号：TS933[轻工技术与工程]