The Neutrals Glass Mosaic Tile. Available in 3 soft shades of mosaic tile: Chalk White, Steel Grey and Suede. Our glass mosaics are suitable as an interior wall tile. Each sheet measures 305 x 310mm. Each mosaic tile measures 50 x 100mm. There are 10.6 sheets per square metre. The mosaics are fixed on a mesh backing for ease of installation.