一种快速区分黑曜岩与黑色玻璃的方法

A Quick Method to Distinguish Obsidian from Artificial Black Glass

黑曜岩饰品价格便宜,在被商家赋予独特的儒释道文化含义后,更是深受大众喜爱。纯黑色黑曜岩最易被黑色玻璃仿冒。单就外观而言二者没有差别,消费者无法区分。对市场上无晕彩的纯黑色黑曜岩及其玻璃仿制品样品做了常规宝石学测试、红外光谱、X射线荧光光谱等测试分析。结果显示,黑曜岩及其仿制品样品的红外光谱,尤其是红外透射光谱的差异明显,较易区分。同时,在笔者大量实验现象总结后发现了一种更适于消费者操作的、简单快速的区分黑色玻璃和黑曜岩的方法:通过观察透过样品的透射光颜色来判断。当透过光源颜色改变成蓝色、紫色或红色时,该样品是黑色玻璃;当透过光源颜色基本不变时,样品较大概率为黑曜岩。

Obsidian jewelry is at a good price after being given a unique cultural meaning by merchants,it became even more popular.Black obsidian is most easily imitated by artificial black glass.In terms of appearance,there is no difference between the two,and consumers cannot distinguish them.Samples of black obsidian without halo and its glass imitations were analyzed by conventional gemmological tests,infrared spectroscopy and X-ray fluorescence spectroscopy etc.The results showed that the infrared spectra of black obsidian and its black glass imitation samples,are significantly different,especially the transmission infrared spectra.At the same time,after summarizing a large amount of experimental phenomena,a simple and quick method for consumers to distinguish black glass from obsidian was found,which is observing the colour of the light source passing through the samples.When the colour of the light source changes to blue,purple,or red,the sample is black glass.If the colour of the light source is basically unchanged,the sample is more likely to be obsidian.