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

Table 2

Isotopic and chemical composition of Roman and late Antique glasses from Thessaloniki Agora, 1st–6th century AD in age. Note that CoO and NiO contents are not reported because they are lower than EMPA detection limits for all samples (LOD of CoO and NiO = 0.03 wt%).

Sample	^18O	SiO2	Na2O	CaO	Al2O3	K2O	MgO	FeO	TiO2	MnO	P2O5	SO3	Cl	CuO	ZnO	SnO2	Sb2O3	PbO
Number	(VSMOW)	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%	Wt%
1-1	15.5	66.17	16.90	8.60	2.68	0.65	1.46	1.22	0.18	1.64	0.13	0.35	0.68	<0.03	<0.04	<0.04	<0.04	<0.08
2-1	15.6	64.65	14.96	6.14	3.16	0.94	1.49	1.11	0.20	1.48	0.65	0.16	0.65	0.67	0.04	0.89	<0.04	2.90
3-1	15.5	71.48	15.40	7.42	2.44	0.37	0.59	0.58	0.09	0.55	0.02	0.24	0.96	<0.03	<0.04	<0.04	<0.04	<0.08
4-1	15.6	64.24	9.88	5.74	1.59	11.47	3.48	0.30	0.03	<0.05	1.30	0.07	0.64	<0.03	<0.04	<0.04	0.09	<0.08
5-1	15.4	67.68	16.94	7.08	2.73	0.57	0.96	1.59	0.28	1.09	0.07	0.23	1.09	<0.03	<0.04	<0.04	<0.04	<0.08
6-1	15.5	72.98	17.00	4.98	2.09	0.56	0.51	0.29	0.09	<0.05	0.01	0.22	0.90	<0.03	<0.04	<0.04	0.25	<0.08
7-1	15.6	65.43	19.76	6.54	2.38	0.40	1.08	1.14	0.26	1.12	0.02	0.27	1.60	0.14	<0.04	<0.04	<0.04	0.33
8-1	15.5	67.14	16.83	7.86	2.92	0.91	1.29	1.65	0.20	1.45	0.26	0.25	0.54	<0.03	<0.04	<0.04	<0.04	<0.08
9-1	15.6	65.53	17.33	7.84	2.95	0.85	1.41	1.39	0.19	1.67	0.26	0.30	0.53	<0.03	<0.04	<0.04	<0.04	<0.08
10-1	15.5	76.51	9.67	8.11	0.25	3.78	1.03	0.06	<0.04	<0.05	0.06	0.40	0.19	<0.03	<0.04	<0.04	<0.04	<0.08
mean isotopic composition