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...

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

Silex :: Silex (n.) Silica, SiO2 as found in nature, constituting quarz, and most sands and sandstones. See Silica, and Silicic..

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

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..

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

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

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

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

Foralite :: Foralite (n.) A tubelike marking, occuring in sandstone and other strata..

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

Cephalaspis :: Cephalaspis (n.) A genus of fossil ganoid fishes found in the old red sandstone or Devonian formation. The head is large, and protected by a broad shield-shaped helmet prolonged behind into two lateral points..

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..

Otozoum :: Otozoum (n.) An extinct genus of huge vertebrates, probably dinosaurs, known only from four-toed tracks in Triassic sandstones..

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..

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

Psammite :: Psammite (n.) A species of micaceous sandstone.

Greensand :: Greensand (n.) A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green color, mixed with sand and a trace of phosphate of lime..

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..

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

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

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