Figure 5
From: Shedding New Light on Ancient Glass Beads by Synchrotron, SEM-EDS, and Raman Spectroscopy Techniques
The blue sample, BLL1-1, has a smooth and homogeneous texture with few inclusions. Spectrum 29 shows the major element composition. Spectrum 25 reveals a zircon (ZrSiO4) inclusion. Elemental mapping indicated the major and some trace elements.
