Graphite wallpaper collection from Omexco by Arte. This wallpaper collection from Omexco shows the wonders of stone. Textured mica provides a collection full of texture and the natural brilliance of mineral stones. Mica is also called miracle stone. A wallpaper collection with the designs GRAO, GRA1, GRA2, GRA3,GRA4,GRA5,GRA6 and GRA7. Luxury wallpaper from Omexco.