... , rhombic 3.Slate application: Indoor and Outdoor decoration, Garden, Villa wall decoration. 4.Available color: black, rusty, green ... quartzite, pink quartzite, black quartzite, red quartzite, pink and etc. 5.Slate pattern: slate tile, slate floor(paving stone), wall ... flagmat stone), tumbled stone, step (stairs), random slate(irregular slate), river stone (pebble stone), and machinemade cobble stone ...