营口蛇纹石玉红外发射功能及其影响因素

Infared Emission Function and Its Influencing Factors of Yingkou Serpentine Jade

辽宁省营口市大石桥产出的蛇纹石玉是传统名玉岫玉的一种,其物理化学特征和矿物岩石学特征与传统岫岩玉有较大差别。本文采用一系列分析技术测试了该地区蛇纹石玉的放射性、化学成分、矿物成分及在8～15μm波长带的红外发射率,结果表明:该地区蛇纹石玉不具有放射性,对人体安全无害,有良好的红外辐射功能,至少两类玉石有可能直接用作天然保健材料;玉石的矿物组成越复杂、矿物的红外活性越强、红外吸收波段范围越大,玉石的红外发射率就越高;含有硼镁石的样品的红外发射率较高达0.82。蛇纹石的晶体结构和过渡元素含量是蛇纹石玉红外发射功能的重要影响因素,晶格活性振动强、Fe2O3含量为6.28%的样品红外发射率高达0.83。引入过渡元素可以提高玉石样品的红外发射率。

Serpentine jade from Dashiqiao in Yingkou City,Liaoning Province is a special kind of traditional Xiuyan jade.The physicochemical characteristics,mineralogy and petrology characteristics of the serpentine jade were considerably different from Xiu-yan jade.The radioactivity,chemical composition,mineral constitute features and the emission power in 8-15 μm spectrum of the serpentine jade are investigated and measured by using the modern petrological analytical techniques.It was found that the jade in this area possesses very good infrared emission ability without toxinic and radioactive elements.There are at least two kinds of jade can be used as natural health material.We argue that when more kinds of minerals and strong infrared-activation minerals are included in the jade,the jade absorbs more energy and it emits more power,with szaibelyite reaches 0.82,similar to tourmaline.The crystal structure of serpentine and content of transition elements are also important factors to improve the emission ability.The serpentine of high-activation crystal lattice and 6.28% Fe2O3 emits most power and the infrared ability reaching 0.83.By adding transition elements to the jade,the infrared function can be improved.