Abstract
Two ancient green Chinese Pb‐Ba glass (Qin and Han dynasties) were studied with Raman microspectroscopy, scanning electron microscopy, and energy dispersive X‐ray spectrometry. Some needlelike silicates were found in the samples and inferred as BaSiO3, BaSi2O5, and PbSiO3according to the results of energy dispersive X‐ray spectrometry analysis. Then BaSiO3, BaSi2O5, and PbSiO3were synthetized in laboratory in order to obtain their Raman spectra. Through comparative study, the needlelike silicates in the ancient Pb‐Ba glass samples were proved to be PbSiO3, BaSiO3, and Al2O3. According to the ternary phase diagram analysis, a mechanism of local element enrichment was put forward for the barium silicate needlelike silicates (by‐products) formation in the ancient Pb‐Ba glass. Copyright © 2014 John Wiley & Sons, Ltd.
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