Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of sandstone is as below...

Graduate :: Graduate (v. i.) To pass by degrees; to change gradually; to shade off; as, sandstone which graduates into gneiss; carnelian sometimes graduates into quartz..

Ichnite :: Ichnite (n.) A fossil footprint; as, the ichnites in the Triassic sandstone..

Laterite :: Laterite (n.) An argillaceous sandstone, of a red color, and much seamed; -- found in India..

Clastic :: Clastic (a.) Fragmental; made up of brok/ fragments; as, sandstone is a clastic rock..

Scale :: Scale (v. i.) To separate and come off in thin layers or laminae; as, some sandstone scales by exposure..

Brownstone :: Brownstone (n.) A dark variety of sandstone, much used for building purposes..

Sandstone :: Sandstone (n.) A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.

Ludlow Group :: Ludlow group () A subdivision of the British Upper Silurian lying below the Old Red Sandstone; -- so named from the Ludlow, in Western England. See the Chart of Geology..

Arenilitic :: Arenilitic (a.) Of or pertaining to sandstone; as, arenilitic mountains..

Potsdam Group :: Potsdam group () A subdivision of the Primordial or Cambrian period in American geology; -- so named from the sandstone of Potsdam, New York. See Chart of Geology..

Sarsen :: Sarsen (n.) One of the large sandstone blocks scattered over the English chalk downs; -- called also sarsen stone, and Druid stone..

Flag :: Flag (n.) Any hard, evenly stratified sandstone, which splits into layers suitable for flagstones..

Grit :: Grit (n.) A hard, coarse-grained siliceous sandstone; as, millstone grit; -- called also gritrock and gritstone. The name is also applied to a finer sharp-grained sandstone; as, grindstone grit..

Dinosauria :: Dinosauria (n. pl.) An order of extinct mesozoic reptiles, mostly of large size (whence the name). Notwithstanding their size, they present birdlike characters in the skeleton, esp. in the pelvis and hind limbs. Some walked on their three-toed hind feet, thus producing the large bird tracks, so-called, of mesozoic sandstones; others were five-toed and quadrupedal. See Illust. of Compsognathus, also Illustration of Dinosaur in Appendix..

Psarolite :: Psarolite (n.) A silicified stem of tree fern, found in abundance in the Triassic sandstone..

Quartzite :: Quartzite (n.) Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock.

Scrubstone :: Scrubstone (n.) A species of calciferous sandstone.

Molasse :: Molasse (n.) A soft Tertiary sandstone; -- applied to a rock occurring in Switzerland. See Chart of Geology.

Poecilitic :: Poecilitic (a.) Specifically: Of or pertaining to, or characterizing, Triassic and Permian sandstones of red and other colors..

Scolithus :: Scolithus (n.) A tubular structure found in Potsdam sandstone, and believed to be the fossil burrow of a marine worm..

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