This backsplash tile is made of crystal glass chips, and it is interlocking designs. The color on all rose gold crystal glass tiles at is kiln fired onto back of tile, not painted on, which means it will never scratch, chip, fade or peel. and the colors of silver and dark blue glass tiles are coated onto the glass so that they won't fade, age or have significant color variations. The black glass mosaics have ice cracking effect, but it is not actual cracked. On the back of the tile it is mesh mounted, the finish is glossy, so it?s easy for cutting and cleaning. Please use non-sanded grout for installation.