湖北黄石与印度浦那鱼眼石的宝石学特征对比研究

近年来，在湖北黄石地区发现了具有重要研究价值的鱼眼石晶体，其结晶习性与其它地区的鱼眼石有一定的区别。以湖北黄石与印度浦那鱼眼石晶体为研究对象，采用宝石学常规仪器、电子探针、激光拉曼光谱仪对比分析了两者的晶体特征、化学成分和包裹体等。结果显示，湖北黄石鱼眼石样品的结晶形态以板状为主，印度浦那鱼眼石样品则以柱状为主；所有样品的主要元素均为Si，Ca和K，但湖北黄石鱼眼石样品中还含有Al和Na元素；湖北黄石鱼眼石样品以气液两相包裹体为主，印度浦那鱼眼石样品则以石英、沸石等晶体包裹体为主。

Comparative Study on Gemmological Characteristics of Apophyllites from Huangshi of Hubei Province and Punna of India

A kind of apophyllite crystal with the important research value is found recently in Huangshi district of Hubei Province in China, and its crystal habit is different from that of apophyllite from other areas. The apophyllite crystals from Huangshi of Hubei Province and Punna of India are studied by means of conventional gemmologieal methods, EMPA and LRM, including the crystal characteristics, chemical compositions and inclusions. The re- sults show that the crystal form of the apophyllite sample from Huangshi of Hubei Province is mainly in tabular, and that of the sample from Punna of India is in columnar. The main elements of the both samples are Si, Ca and K, but Al and Na could be found in the sample from Huangshi of Hubei Province. The gas-liquid inclusion is mainly in apophyllite sample from Huangshi of Hubei Province, and the quartz and zeolite inclusions are mainly in the sample from Punna of India.