中文摘要：

通过便携式能量色散型X射线荧光、X射线衍射和激光Raman光谱等无损分析技术研究了11块天然玻璃样品的化学成分、结构和物相。结果表明：除两件样品（B1和H3）外,其它样品均为玻璃态,主要化学成分为SiO2与Al2O3。通过化学成分分析可以区分玻陨石和黑曜石样品,玻陨石中铁与碱土金属含量比黑曜石高,而碱金属含量比黑曜石低。激光Raman光谱测试表明：样品在470 cm–1附近有玻璃态特征的弥散包络峰,应为含有6个[SiO4]组成的变形环状结构单元。

英文摘要：

The chemical composition,structure and mineral phase of eleven natural glass samples were characterized by some nonde-structive analysis methods like energy-dispersive X-ray fluorescence,X-ray diffraction and laser Raman spectroscopy（LRS）,respec-tively.The results indicate that all sample with the main chemical composition of SiO2 and Al2O3 are in vitreous state,except two samples（B1 and H3） that are in crystalline state.Tektite and obsidian samples can be distinguished by the chemical composition analysis.The content of iron and alkaline earth oxides in tektites were greater than that in obsidians,and the content of alkali oxides was lower than that of obsidians.The diffused peak at 470 cm–1 in the LRS was characterized for the glass nature,showing the signa-ture of deformed cyclic ring composed by six .