Sandstone is a sedimentary rock composed mainly of sand-size mineral or rock grains. Most sandstone is comprised of quartz and/or feldspar because these are the most common minerals in earth's crust. Like sand, sandstone may be any color, but the most common colors are tan, brown, yellow, red, gray, and white. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone may be strongly identified with certain regions. For instance, much of the North Ame ...

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Sandstone - Origins Sandstone - Types of sandstone Sandstone - Basic References

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Sandstone, Sandstone - Origins, Sandstone - Types of sandstone, Sandstone - Basic References

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Sandstones are clastic in origin (as opposed to organic, like chalk or coal). They are formed from the cemented grains that may be fragments of a pre-existing rock, or else just mono-minerallic crystals. The cements binding these grains together are typically calcite, clays and silica. Grain sizes in sands are in the range of 0.1mm to 2mm. (Rocks with smaller grainsizes include siltstones and shales and are typically called argillaceous sediments, as are also clays. Rocks with larger grainsizes include both breccias and conglomerates and are ...

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Sandstone, Sandstone - Origins, Sandstone - Types of sandstone, Sandstone - Basic References

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The Buddhas of Bamiyan were two monumental statues of standing Buddhas carved into the side of a cliff in the Bamiyan valley of central Afghanistan, situated 230 km northwest of Kabul at an altitude of 2500 meters. Most likely built in the fifth or sixth centuries, the statues represented a classic blending of Greek and Buddhist art. The main bodies were hewn directly from the sandstone cliffs, but details were modelled in mud mixed with straw, coated with stucco. This coating, practically all of which was worn away long ago, w ...

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• Buddhas of Bamiyan - History
• Buddhas of Bamiyan - Destruction and rebuilding
• Buddhas of Bamiyan - Recent developments

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Marble is metamorphosed limestone, composed of mostly pure calcite (a crystalline form of calcium carbonate, CaCO3). It is extensively used for sculpture, as a building material, and in many other applications. Faux marble or faux marbling is a wall painting technique that imitates the color patterns of real marble (not to be confused with paper marbling). Marble dust can be combined with cement or synthetic resins to make reconstituted or cultured marble. Places named after the stone include Mar ...

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Marble - Origins Marble - Kinds of marble Marble - Construction marble Marble - Etymology Marble - Cultural associations

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Arkose is a kind of sandstone combining of quartz and with large amounts of feldspar. Sandstones with more than 25% feldspars are generally classified as Arkoses. Other related archivesfeldspar, quartz, sandstone

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Sand is an example of a class of materials called granular matter. Sand is a naturally occurring, finely divided rock, comprising particles or granules ranging in size from 1⁄16 to 2 millimeters. An individual particle in this range size is termed a sand grain. The next smaller size class in geology is silt: particles below 1⁄16 mm down to 1⁄256 mm (0.004 mm) in size. The next larger size class above sand is gravel, with particles ranging up to 6 ...

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Sand - Uses of sand Sand - Hazards of sand

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The Altar stone is a central megalith at Stonehenge in England, dating to Stonehnege phase 3i, around 2600 BC. It is made of green micaceous sandstone and originated from a quarry in Wales. It weighs six-tons and would have been twice the height of the bluestones at the site. Now recumbent, it may have stood as a single large monolith Other related archivesEngland, Stonehenge, Wales, bluestones, megalith, sandstone

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The royal burgh of Annan stands on the River Annan nearly 2 miles from its mouth, 15 miles from Dumfries, in the region of Dumfries and Galloway on the Solway Firth in the south of Scotland. Annan is a well-built town, red sandstone being the material mainly used. Among its public buildings is the excellent Annan Academy of which the writer Thomas Carlyle was a pupil, a Georgian building now known as "Bridge House". The Town Hall, built in Victorian style in 1878, uses the local sandstone. Annan also features a Historic Resources Centre. In Port Street, so ...

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Annan Dumfries and Galloway - External link

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In geography, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are categorized as erosion landforms due to the processes of erosion and weathering that produce them. Cliffs are common on coasts, in mountainous areas, escarpments, and along rivers. Generally speaking, cliffs are formed by rock that is resistant to erosion and weathering. Sedimentary rocks most likely to form cliffs are sandstone, limestone, chalk, and dolomite. Igneous rocks, such as Granite and basalt, also often form cliffs. A scar ...

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Badami, formerly known as Vatapi, is a city in the Bijapur District of Karnataka state in southern India. Founded by Pulakesin I, an early ruler of the Chalukyas, the town of Badami is located at the foot of a rugged, red sandstone outcrop that surrounds Agastyatirth water reservoir - an artificial lake - on three sides. Known for its rock-cut cave temples which were exquisitely sculpted anywhere between the 6th-8th centuries AD, this ancient city was once the capital of the Chalukyan dynasty. The Bhutanatha temple, a sm ...

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The Boston Mountains are a high and deeply dissected plateau in northern Arkansas and northeastern Oklahoma where they are referred to as the Cookson Hills. The Bostons form the southwestern part of Ozark plateau of which they are the highest and in general most rugged. The rocks of the region are essentially little disturbed, flat lying sedimentary layers of Paleozoic age. The highest ridges and peaks are capped by Pennsylvanian sandstone and shale. The deeply eroded valleys are cut into Mississippian ...

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Boston Mountains - External link

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Bell Island is an island located off Newfoundland's Avalon Peninsula in Conception Bay. Measuring 9 km in length and 3 km in width, Bell Island has an area of 34 square kilometres. The soil is composed of Ordovician sandstone and shale with red hematite. Bell Island - History. Likely settled by Maritime Archaic Indians and/or the Dorset people, Bell Island, as with the rest of the island of Newfoundland was likely inhabited by the Beothuk Nation at the time of European discovery. The f ...

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Bell Island - History Bell Island - Transportation

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The Black Forest (German Schwarzwald) is a wooded mountain range in Baden-Württemberg, southwestern Germany. It is bordered by the Rhine valley to the west and south. The highest peak is the Feldberg with an elevation of 1,493 meters (4,898 feet). The name Black Forest comes from the general dark color of the numerous pine trees that grow in this region. The Black Forest gateau originated from this region. Black Forest - Geography. Geologically, the Black Forest consists of a cover of sandstone on t ...

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Black Forest - Geography Black Forest - Points of interest Black Forest - Popular culture Black Forest - List of highest mountains

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Edfu (also spelt Idfu or in modern French as Edfou and known in antiquity as Behdet) is an Egyptian city, located on the west bank of the River Nile between Esna and Aswan, with a population of approximately sixy thousand people. The town is known for the major Ptolemaic temple, built between 237 BCE to 57 BCE. Of all the temple remains in Egypt, the Temple of Horus at Edfu is the most completely preserved. Built from sandstone blocks, the huge Ptolemaic temple was constructed over the site of a smal ...

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Brownstone is a brown sandstone which was once a popular building material. While brownstone is often popularly associated with New York City, the stone was used widely, around the world, until it fell out of favour, around 1900. The quarries used for the early brownstones of New York City were in New Jersey, and in the Connecticut River area. In New York City a brownstone is understood to be a rowhouse clad in brownstone. New York City brownstones tend to be found in certain older neighborhoods, which are perhaps most c ...

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The Warrior of Hirschlanden is a statue of a nude ithyphallic warrior made of sandstone, the oldest known iron age life-size anthropomorphic statue north of the Alps. It was a production of the Hallstatt culture of the early Iron age (800-475 BC). It is now in the Württembergisches Landesmuseum in Stuttgart. The preserved height is 1.50 m; the feet have been broken off. The warrior wears a pointed hat, maybe – in analogy to the princely grave of Hochdorf - made of birchbark, a neck-r ...

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Warrior of Hirschlanden - Literature Warrior of Hirschlanden - External link

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The White House is the official residence and principal workplace of the President of the United States of America. The White House is a white-painted, neoclassical sandstone mansion located at 1600 Pennsylvania Avenue NW in Washington, D.C. (38°53′51″N, 77°02′12″W). As the office of the U.S. President, the term "White House" is often used as a metonym for the president's administration. The property is owned by the Nati ...

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White House - History White House - Structure White House - The West Wing White House - The East Wing White House - The White House grounds White House - The Web site

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Ale's Stones (Ales stenar in Swedish) is a megalithic monument in Scania in southern Sweden, from circa 500 BC, that is, the end of the Nordic Bronze Age and the beginning of the Pre-Roman Iron Age. Ale's Stones consist of a 67 metres long stone ship formed by 59 large pieces of sandstone, weighing up to 1.8 ton. Inside the formation, remains of coal and human bones have been found and they ha ...

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Ale's Stones - Speculations Ale's Stones - External link

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Ammosaurus (AM-o-sawr-us) meaning "lizard of the sand", because it was found in sandstone (Greek ammos = sand + sauros = lizard) has been identified by four incomplete skeletons found in United States and Canada regions. The first Ammosaurus skeleton was found in the late 1880s by a group of construction workers in the Connecticut Valley in the US, who were building a bridge at the time. The valley was once a swamp, on which Amosaurus would often search for food along its banks. Other fragmental skel ...

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