Journal of Chemistry

Research Article

Chemical and Oxygen Isotopic Composition of Roman and Late Antique Glass from Northern Greece

Table 3

Isotopic and chemical composition of glasses from Maroneia, 4th–6th centuries AD in age. Note that CoO, NiO, CuO, ZnO, SnO₂, Sb₂O₃, and PbO contents are not reported because they are lower than EMPA detection limits for all samples (LOD of CoO, NiO and CuO = 0.03 wt%; LOD of ZnO, SnO₂, Sb₂O₃ = 0.04 wt%; LOD of PbO = 0.08 wt%).


Sample	¹⁸O	SiO₂	Na₂O	CaO	Al₂O₃	K₂O	MgO	FeO	TiO₂	MnO	P₂O₅	SO₃	Cl
Number	(VSMOW)	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%

1-2	15.4	67.11	17.39	7.84	2.29	0.61	1.10	1.06	0.15	1.54	0.07	0.30	1.02
2-2	15.5	66.23	17.80	7.83	2.70	0.76	1.23	1.33	0.17	1.23	0.15	0.31	0.92
3-2	15.6	64.62	17.70	8.98	2.40	0.72	1.47	1.04	0.16	1.82	0.12	0.34	0.92
4-2	15.9	65.64	18.46	7.95	2.70	0.82	1.21	1.38	0.16	0.96	0.13	0.32	0.91
5-2	15.6	65.70	17.38	8.25	2.38	0.59	1.21	0.88	0.15	1.69	0.09	0.34	0.95
6-2	15.6	66.79	17.17	7.50	2.53	0.60	1.25	0.98	0.16	1.84	0.08	0.30	1.00
7-2	15.7	64.63	17.96	9.07	2.57	0.71	1.50	1.10	0.18	1.72	0.13	0.33	0.92
8-2	15.2	65.56	17.56	7.52	2.50	0.65	1.25	0.93	0.17	2.34	0.09	0.29	1.01
9-2	16.0	66.13	18.14	7.83	2.73	0.84	1.22	1.28	0.15	0.99	0.16	0.34	0.90
10-2	15.3	66.59	16.36	8.59	2.40	0.69	1.11	0.88	0.17	1.60	0.11	0.36	0.87

mean isotopic composition