Mat smalti, Cut A approximately 2cm x 1cm x 1cm, approximately 37 pieces per 100 grams, coverage approximately 14 kgs per square metre. Mat smalti has been sandblasted to produce an unusual matt finish. Produced in Venice, Italy by Angelo Orsoni since 1888. Originally developed for use in mosaics created during the time of the Byzantine empire. Mosaic Supplies are official stockists of Orsoni Smalti and we can offer the full range of mat smalti to special order (minimum quantity 1kg per item).