Egyptian Blue cakes from the Ayanis fortress (Eastern Anatolia, Turkey): micro-chemical and -structural investigations for the identification of manufacturing process and provenance Federica Faraldi, Erica I. Parisi, A. Çilingiroğlu, Gabriella Di Carlo, Cristina Riccucci, Tilde de Caro, Gabriel Maria Ingo, A. Batmaz • 2013