Dear list members, I wonder if somebody has noted similar corrosion structures in Cu-As alloys, as visible here: https://www.directupload.net/file/d/5353/489ucu5w_jpg.htm (the images are in polarized light and derive all from Bronze Age Cu-Sn objects). Thank you very much for any help! All the best, Marianne -- *Mag. Dr. (habil.) Marianne Mödlinger* Homepage <http://www.mmoedlinger.eu> & blog ArsenicLoss <http://arsenicloss.com> +39.340.1388.506 (Italy), +33.(0)680.54.41.90 (France) Email: [log in to unmask] ######################################################################## To unsubscribe from the ARCH-METALS list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=ARCH-METALS&A=1