Heritage Science

Table 1 Composition ranges for Sisenna and Domitian production groups

From: Towards high resolution ceramic series for production site studies: the case of Loron amphorae (Croatia, 1st–3rd c. A.D.)

	Al₂O₃	SiO₂	K₂O	CaO	TiO₂	Fe₂O₃	Rb	Sr	Zr
Average Sisenna	14.25	56.12	1.77	14.01	0.83	6.01	119	278	156
St. dev.	0.52	1.40	0.10	2.07	0.04	0.29	12	26	11
%St. dev.	3.66	2.49	5.65	14.74	4.65	4.78	10	9	7
Average Domitian	14.83	57.56	2.21	10.41	0.88	6.38	138	220	153
St. dev.	0.36	1.18	0.08	1.13	0.05	0.27	12	14	10
%St. dev.	2.44	2.06	3.63	10.89	6.02	4.29	8	6	6

Major and minor elements are given in mass percentages and expressed as oxides; trace elements are given in parts per million.

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