jvari pass travertine natural monument is calcareous sinter or tufa mixture

transparent travertine calcareous background geothermal geological limestone beautiful carbonate wallpaper formation monument mountain abstract geologic textured chemical natural mixture ferrous covered texture georgia geology terrain mineral calcium outdoor thermal pattern healing closeup sinter nature spring stream orange yellow fossil design valley jvari salts layer water shore coast river rapid beach ocean stone color pass tufa thin sand rock wave soil snow wood wadi salt