small smooth waterworn black pebbles or stones for use decor and garden landscaping. tone garden interiors. stone spa

backdrop background basalt black closeup construction decorative eroded erosion fragments frame full garden geological geology gravel igneous irregular landscaping layer material matt mineral monochromatic natural nature ornamental pattern pebbles pile random rock sedimentary small smooth spa stones supplies surface texture tumbled water waterwashed waterworn worn use decor landscaping tone interiors stone