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在斯里兰卡Ratnapura地区的蓝宝石样品中观察到丰富的流体包体(部分流体包体中含有无色针状包体),形貌相似的深色板状矿物包体,以及3组交角约为60°的红棕色针状矿物包体等。通过肉眼观测,研究人员对上述各类包体的矿物种类无法进行有效鉴别。利用激光共聚焦显微拉曼光谱仪对蓝宝石样品中的包体进行测试分析得出,深色矿物包体有两类,分别为磁铁矿和石墨;无色透明针状包体是位于液态CO2内的硬水铝石晶体;红棕色针状包体是赤铁矿,而不是易混淆的金红石针状包体。激光共聚焦显微拉曼光谱仪能够准确鉴定出蓝宝石中各种包体的种类,对不具备典型晶形的包体和常规仪器难以判别的包体十分有效。
Abundant fluid inclusions (some of the fluid inclusions contain colorless acicular inclusions), dark-colored plate-like mineral inclusions with similar topography were observed in the sapphire samples of Ratnapura area, Sri Lanka, and three groups of cross-sections of about 60 ° Reddish brown acicular mineral inclusions and so on. By naked eye observation, researchers can not effectively identify the mineral types of the above types of inclusions. Laser confocal microscopy Raman spectroscopy Sapphire samples in the package analysis showed that there are two types of dark mineral inclusions, respectively, magnetite and graphite; colorless transparent acicular inclusions are located in the liquid CO2 Within the diaspore crystals; red-brown acicular inclusions are hematite, rather than confusing rutile acicular inclusions. Laser confocal microscopy Raman spectroscopy can accurately identify the type of sapphire in various inclusions, for the non-typical inclusions and conventional crystal form is difficult to determine the package body is very effective.