abstract background rock, gray and yellow clay. abstract background rock

stone soil surface rough stony background grunge abstract pattern design material detail wall backdrop environment granite block old pebble gravel ground building cracked concept facade arid look petrified solid relief mineral geology decorative cracks pit antique textured tones stones heap grungy rock river pebbles natural masonry weathered gray yellow clay coarseness beach top view oceanfront structure costal roughness ocean light multicolor pebbles aqua paving stone slag