Novel TEM Microscopy and Electron Diffraction Techniques to Characterize Cultural Heritage Materials: From Ancient Greek Artefacts to Maya Mural Paintings

Table 1

EPMA microanalysis data performed on several areas of the fresh blue glass sample.

Oxide detection in wt%
No.	SiO2	Al2O3	MgO	Na2O	TiO2	CaO	SnO2	K2O	MnO	FeO	CoO	CuO	SO3	PbO	Cl	Ag2O	Sb2O5	Total
1	75.75	2.45	0.45	0.02	0.06	6.23	0	0.24	0.01	0.88	0.25	0.17	0.15	0.05	1.29	0.01	0.21	84.22
2	72.22	2.42	0.45	0.02	0.03	6.56	0	0.26	0.01	0.84	0.26	0.17	0.14	0	1.22	0	0.20	84.8
3	74.81	2.45	0.55	0.01	0.05	6.26	0	0.24	0.01	0.92	0.25	0.19	0.13	0	1.16	0	0.18	87.21
4	72.23	2.45	0.53	0.02	0.07	6.42	0	0.26	0.00	0.91	0.27	0.17	0.13	0	1.00	0	0.21	84.67
5	72.64	2.44	0.51	0.03	0.07	6.45	0	0.27	0.01	0.93	0.27	0.17	0.15	0.03	1.21	0.01	0.21	85.4
6	72.38	2.51	0.56	0.03	0.07	6.40	0	0.27	0.01	0.90	0.27	0.18	0.09	0.0	1.03	0	0.19	84.89
7	71.29	2.4	0.53	0.02	0.09	6.60	0	0.23	0.01	0.93	0.27	0.17	0.13	0.0	1.07	0	0.18	83.92

Analyzed areas are shown in Figure 5.