Mosaic2, originally uploaded by stormy1970.

Biennale di Architettura-Venezia06

Mosaic Art Source mosaic definition:

Mosaic definition vitreous tile m.a.s. vitreous tile

vitreous tile – square glass mosaic tiles most commonly 3/4″ x 3/4″ made in molds from glass paste. They have a smooth top but the bottom is keyed with ridges for better adhesion. m.a.s.mosaic glossary