Figure 10
From: Shedding New Light on Ancient Glass Beads by Synchrotron, SEM-EDS, and Raman Spectroscopy Techniques
3D Micro-CT images of the glass sample YLL5-4 revealed a random distribution of the bright pigment spots of lead stannate in the glass matrix because they are opaque to the X-ray energy, indicating that the pigments contained very high atomic mass elements, e.g., Pb and Sn, in agreement with the EDS results. (The series of scans and three movie clip files are in the Supplementary Information).
