3/4-inch iridescent glass mosaic tiles Kaleidoscope brand are mildly iridized so that the underlying colors aren’t obscured, which is a an issue with some products. These come FACE-mounted on paper sheets of 25 tiles for rapid installation. The paper can be removed by soaking in water to yield loose tiles. The backs are NOT iridized but instead are embossed with ridges to help mortars and adhesives bond more securely. Price is per sheet of 25 tiles. The following colors are fairly translucent: Emmy Award Amber, Backstage Blue, Red Carpet.