台山玉矿物学特征研究

Study on Gem Mological and Mineralogical Characters of Taishan Jade

摘要:

广东江门五邑地区盛产的黄蜡石（简称台山玉），具有色彩绚丽、质地细腻温润、硬度高等特点，从外观看，台山玉与黄龙玉、石英质玉同属于二氧化硅质玉石，外观相似。从结构来说，它们的内部石英粒度是逐渐变化的，并没有一个截然的界限来划分种类，关于台山玉的定名，如何区别台山玉及黄龙玉成了普遍问题。此外，关于台山玉的地质产状、矿床学成因等方面研究较为薄弱。该文利用偏光显微镜、化学分析、红外光谱分析等方法，重点对台山玉的形成，宝石学矿物学性质进行研究与分析，力求给予五邑地区台山玉商业运作当中的理论层面上的支持。

Abstract:

Chrismatite (which is named as Taishan jade for short) discovered in Wuyi area of Jiangmen city in Guangdong province has the characteristics of brilliant colour, delicate and moist texture and high hardness. In appearance, Taishan jade, Huanglong jade and quartz jade are very similar and belong to silica quality jade. However, their inertnal quartz particle size is a grdual change from the structure. There is not a very obvious boundary among different types. There are many common problems about how to name Taishan jade, and how to distinguish Taishan jade and Huangla jade. In addition, researches on geological occurrence and the origins of mineral deposits are relatively weak. By using the polarizing microscope, chemical analysis and infrared spectrometer, formation and gem mological and mineralogical characteristics of Taishan jade have been studied and analyzed. It will provide support of for commercial operation of Taishan jadein Wuyi area.