We propose neutron diffraction measurements on GEM aiming to characterize the production technology of a large and unique set of ancient orochalcum ingots. These were found near remains of a ship and earthenware dated around the end of the VI century BC, and coming from the eastern Mediterranean and the Aegean sea. The analytical investigations are aimed at providing information in order to determine the metals compositions, crystalline structure, and textures. We plan to investigate the same samples with different non-destructive neutron techniques to obtain complementary information using INES and IMAT.
