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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。
The serpentine jade produced by Dashiqiao, Yingkou City, Liaoning Province, is a kind of traditional jade jade. The physical and chemical characteristics and mineralogy petrology characteristics are quite different from the traditional Xiuyan jade. In this paper, a series of analytical techniques were used to test the radioactivity, chemical composition, mineral composition and infrared emissivity of the serpentine jade in the region of 8 ~ 15μm. The results show that serpentine jade in this area is not radioactive, Harmless, good infrared radiation, at least two types of jade may be directly used as natural health materials; more complicated mineral composition of jade, mineral infrared activity is stronger, the greater the range of infrared absorption band, jade infrared emissivity The higher the emissivity of the samples containing boerite was up to 0.82. The crystal structure and transition element contents of serpentine are the important influencing factors of the jade infrared emission of serpentine. The crystal activity is strong and the infrared emissivity of sample with 6.23% Fe2O3 is as high as 0.83. The introduction of transition elements can increase the infrared emissivity of jade samples.