The Iridium Collection by SICIS combines modern manufacturing with a centuries-old art form to produce the most comprehensive choice of irdiscent glass mosaic tile colors. Available in 41 beautiful colors, these glass mosaic tiles are made of composite semitransparent glass with an iridescent-effect, high-gloss surface.Known for reinventing the art of glass, marble and stone mosaics, SICIS products are 100% Made in Italy. From the exterior cladding of luxury buildings to mosaic glass tile, SICIS prides itself on creativity, style, technology and avante garde products.