C3 Recycled-Glass Mosaic Tile by Kaleidoscope is sold in units of 1/4 pound, which is at least 49 tiles (about 55 tiles for many colors). C3 is the ultimate mosaic material with stunning colors made from 99% recycled glass. C3 has the luminous color intensity of traditional smalti, but it is less expensive, more durable and floor-safe for commercial installation. Each TILE is 12 mm or (~1/2 inch) by 6 mm thick. Click thumbnail pics to read more.