【作者】 薛源； 邓旺晖； 何雪梅； 张雪梅； 李丹丹；

【Author】 XUE Yuan;DENG Wang-hui;HE Xue-mei;ZHANG Xue-mei;LI Dan-dan;School of Gemology,China University of Geosciences;Lvsongshi Yuan(Beijing) Jewelry Co.Ltd;

【机构】 中国地质大学(北京)珠宝学院； 绿松石缘(北京)珠宝有限公司；

【摘要】 本文选取了来自湖北郧县、郧西县、竹山县及陕西自河县的绿松石样品,结合电子探针、能量色散谱仪、X射线粉晶衍射仪、红外光谱仪和拉曼光谱仪等测试手段对绿松石样品及"铁线"的化学成分、矿物组成和结构等方面进行测试,并结合地质背景对四个产地样品的特征进行了对比。同时,还对各地绿松石和"铁线"成分进行综合分析,结果表明本文选取的竹山县绿松石样品的形成环境较其他矿区贫铝;白河县绿松石"铁线"中含有大量以石墨和非定型碳形式存在的碳;郧西县绿松石"铁线"因受矿床周围铀矿矿化分布的影响,所含杂质元素种类较为丰富,可含有U、V等元素,郧县绿松石Fe含量较低,但因含有较多多水高岭石而使其Al含量较高。更多还原

【Abstract】 The structural characteristics and mineral compositions of turquoise and the veins in turquoise from Hubei and Shaanxi provinces,China have been investigated,using energy dispersive spectrometer（EDS）,XRD,infrared microscopy,Raman spectrometer techniques.The results show that the forming environment of Zhushan turquoises are relatedly lack of A1 and that is beneficial to take place of isomorphous replacement at the site of Al³⁺.The veins of Baihe turquoises contain a lot of carbon which exist as graphite and amorphous carbon,leading to the typical black appearance.The trace elements and content in turquoises in Yunxi are similar to the samples in Baihe,but their veins have less carbon.However,under the influence of the nearby U deposit,Yunxi turquoises have variety kinds of element and could contain U,V,Ba and etc.Turquoises from Yunxian have more Al and less Fe than the other three mining areas.更多还原