texture of sydney sandstone

abstract arenite art australia australian background beige closeup color colors colour colours detail details erosion freestone geological grains hard hue hued iron layer layering natural nature ocher ochery ochre ochry pattern period quar rock sand sandstone sedimentary smooth stone strata striation structural structure structures sunbaked surface sydney tan texture textures tone tones triassic upper wallpaper warm washed washed-out yellow yellowish-brown soft gentle