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The carnelian is a siliceous stone and a species of chalcedony. Its color is a flesh-hued red, varying from the palest flesh-color to a deep blood-red. It is of a conchoidal structure. Normally its color is without clouds or veins; but sometimes delicate veins of extremely light red or white are found arranged much like the rings of an agate.
Old Red Sandstone, abbreviated ORS, is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the eastern seaboard of North America .
Red beds (or redbeds) are sedimentary rocks, typically consisting of sandstone, siltstone, and shale, that are predominantly red in color due to the presence of ferric oxides. Frequently, these red-colored sedimentary strata locally contain thin beds of conglomerate , marl , limestone , or some combination of these sedimentary rocks.
Ermelo Sandstone, Mpumalanga province, near der Farm de Roodepoort Matatiele Sandstone , KwaZulu-Natal province, near Matatiele Naboomspruit (also Golden Dawn or Golden Stone ) Limpopo province, around Warmbaths
Exeter, Devon, ancient city walls of Isca Dumnoniorum with medieval and Roman elements. The New Red Sandstone, chiefly in British geology, is composed of beds of red sandstone and associated rocks laid down throughout the Permian (300 million years ago) to the end of the Triassic (about 200 million years ago), that underlie the Jurassic-Triassic age Penarth Group. [1]
The Stone of Scone being carried out from Edinburgh Castle in preparation for its use at the coronation in 2023 of Charles III. The Stone of Scone (/ ˈ s k uː n /; Scottish Gaelic: An Lia Fàil, meaning Stone of Destiny, also called clach-na-cinneamhuinn; Scots: Stane o Scone) is an oblong block of red sandstone that was used in the coronation of Scottish monarchs until the 13th century, and ...
Purple Mountain is composed of sandstone particles of various sizes which are collectively known as Old Red Sandstone. [4] Old Red Sandstone has a purple-reddish colour, and has virtually no fossils. [4] [5] The colour gave its name to the mountain group. [4] The composition of Old Red Sandstone is variable and contains quartz stones, mudstones ...
Dune cross-bedded aeolian Yesnaby Sandstone of probable Lower Devonian age, Yesnaby, Mainland Orkney Angular unconformity between Middle Devonian Lower Stromness Flagstone and underlying Yesnaby Sandstone of probable Lower Devonian age Old Man of Hoy, Upper Middle Devonian fluvial sandstones resting on basalt Brick-red Eday Marl, Bay of Birstane, reduced to green colour along fractures