IBA characterisation of glasses from the archaeological site of 'La Alcazaba', Almeria (Spain)

'La Alcazaba de Almeria' is one of the most impressive mediaeval remains in Al-Andalus. It was the sea port of the Cordoba Caliphate and, afterwards, the capital of a 'Taifa' kingdom. In the course of recent excavations in this monumental area, several glass remains were found in the access to its palace and were dated back to the XIII-XV centuries, during the so-called 'Nazari' period. We have made PIGE and PIXE analysis of different fragments of these glasses in order to identify their composition versus the different colours and shapes. These analyses have been complemented with other techniques, like SEM in order to learn about the corrosion process suffered by these glasses during their long burial period. Also a comparison with ICP-OES has been made to check the validity of the IBA results in this case where we are dealing with corroded samples