Marble is a metamorphic rock Metamorphic rock is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism, which means "change in form". The protolith is subjected to heat and pressure causing profound physical and/or chemical change. The protolith may be sedimentary rock, igneous rock or another older metamorphic composed of recrystallized carbonate minerals, most commonly calcite Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (Ca or dolomite Dolomite is the name of a sedimentary carbonate rock and a mineral, both composed of calcium magnesium carbonate Ca . It is commonly used for sculpture Marble sculpture is the art of creating three-dimensional forms from marble. Sculpture is among the oldest of the arts. Even before painting cave walls, early humans fashioned shapes from stone. From these beginnings, artefacts have evolved to their current complexity. The point at which they became art is for the beholder to decide and as a building A wider definition may comprise all design activity, from the macro-level to the micro-level (construction details and furniture). Architecture is both the process and product of planning, designing and constructing form, space and ambience that reflect functional, technical, social, and aesthetic considerations. It requires the creative material.
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Etymology
The word "marble" derives from the Greek Greek , an independent branch of the Indo-European family of languages, is the language of the Greeks. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. In its ancient form, it is the language of classical ancient Greek literature and the New Testament of "μάρμαρον" (mármaron),[1] from "μάρμαρος" (mármaros), "crystalline rock", "shining stone",[2][3] perhaps from the verb "μαρμαίρω" (marmaírō), "to flash, sparkle, gleam".[4] This stem is also the basis for the English word marmoreal, meaning "marble-like."
Whilst the English term resembles the French French is a Romance language spoken as a first language by about 136 million people worldwide. Around 190 million people speak French as a second language, and an additional 200 million speak it as an acquired foreign language. French speaking communities are present in 57 countries and territories. Most native speakers of the language live in marbre, most other european languages (eg Spanish Countries where Spanish has official status. States of the U.S. where Spanish has no official status but is spoken by 25% or more of the population. States of the U.S. where Spanish has no official status but is spoken by 10-20% of the population. States of the U.S. where Spanish has no official status but is spoken by 5-9.9% of the population mármol, Italian Italian ( italiano , or lingua italiana) is a Romance language spoken as a native language by about 70 million people in Italy, San Marino and parts of Switzerland, Croatia, Slovenia and France. In addition, it is spoken by an additional 120 to 150 million people as a non-native language. Most native speakers are native bilinguals of both marmo, Portuguese Portuguese ( português or língua portuguesa) is a Romance language that grew from the Latin descended Galician-Portuguese language that was spoken in the mediaeval Kingdom of Galicia, whose territory is now divided between northern Portugal, Galicia and Asturias. It also absorbed influences from the Romance and Arabic languages spoken in the mármore, German German (Deutsch, [ˈdɔʏtʃ] ) is a West Germanic language, thus related to and classified alongside English and Dutch. It is one of the world's major languages and the most widely spoken first language in the European Union. Globally, German is spoken by approximately 120 million native speakers and also by about 80 million non-native speakers and Swedish Swedish ( svenska ) is a North Germanic language, spoken by approximately 10 million people, predominantly in Sweden and parts of Finland, especially along the coast and on the Åland islands. It is to a considerable extent mutually intelligible with Norwegian and to a lesser extent with Danish (see especially "Classification"). Along marmor, Polish Polish is a West Slavic language and the official language of Poland. Its written standard is the Polish alphabet which corresponds basically to the Latin alphabet with a few additions. Polish-speakers use the language in a uniform manner throughout most of Poland marmur, Czech Czech is a West Slavic language with about 12 million native speakers; it is the majority language in the Czech Republic and spoken by Czechs worldwide. The language was known as Bohemian until the late 19th century in English. Czech is similar to and mutually intelligible with Slovak and, to a lesser extent, to Polish and Sorbian mramor and Russian Russian is the most geographically widespread language of Eurasia, the most widely spoken of the Slavic languages, and the largest native language in Europe. Russian belongs to the family of Indo-European languages and is one of three (or four including Rusyn) living members of the East Slavic languages. Written examples of Old East Slavonic are мрáмор ) follow the original Greek.
Origins
Marble is a rock resulting from metamorphism Metamorphism is the solid-state recrystallization of pre-existing rocks due to changes in physical and chemical conditions, primarily heat, pressure, and the introduction of chemically active fluids. Mineralogical, chemical and crystallographic changes can occur during this process of sedimentary Sedimentary rock is a type of rock that is formed by sedimentation of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles to settle and accumulate or minerals to precipitate from a solution. Particles that form a sedimentary rock by accumulating carbonate rocks, (most commonly limestone Limestone is a sedimentary rock composed largely of the mineral calcite . Like most other sedimentary rocks, limestones are composed of grains; however, most grains in limestone are skeletal fragments of marine organisms such as coral or foraminifera. Other carbonate grains comprising limestones are ooids, peloids, intraclasts, and extraclasts or dolomite rock Dolostone or dolomite rock is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite. In old U.S.G.S. publications it was referred to as magnesian limestone. Most dolostone formed as a magnesium replacement of limestone or lime mud prior to lithification. It is resistant to erosion and can either contain bedded layers). Metamorphism Metamorphism is the solid-state recrystallization of pre-existing rocks due to changes in physical and chemical conditions, primarily heat, pressure, and the introduction of chemically active fluids. Mineralogical, chemical and crystallographic changes can occur during this process causes variable recrystallization of the original carbonate mineral grains. The resulting marble rock is typically composed of an interlocking mosaic of carbonate crystals A crystal or crystalline solid is a solid material, whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. The scientific study of crystals and crystal formation is crystallography. The process of crystal formation via mechanisms of crystal growth is called. Primary sedimentary textures and structures of the original carbonate rock (protolith) have typically been modified or destroyed.
Pure white marble is the result of metamorphism of a very pure (silicate-poor) limestone or dolomite protolith. The characteristic swirls and veins of many colored marble varieties are usually due to various mineral impurities such as clay Clay is a naturally occurring material composed primarily of fine-grained minerals. Clay deposits are mostly composed of clay minerals, a subtype of phyllosilicate minerals, which impart plasticity and harden when fired or dried; they also may contain variable amounts of water trapped in the mineral structure by polar attraction. Organic materials, silt Silt is granular material of a grain size between sand and clay derived from soil or rock. Silt may occur as a soil or as suspended sediment in a surface water body. It may also exist as soil deposited at the bottom of a water body, sand Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica , usually in the form of quartz, iron oxides Iron oxides are chemical compounds composed of iron and oxygen. Altogether, there are sixteen known iron oxides and oxyhydroxides, or chert Chert is a fine-grained silica-rich microcrystalline, cryptocrystalline or microfibrous sedimentary rock that may contain small fossils. It varies greatly in color (from white to black), but most often manifests as gray, brown, grayish brown and light green to rusty red; its color is an expression of trace elements present in the rock, and both which were originally present as grains or layers in the limestone. Green coloration is often due to serpentine The serpentine group describes a group of common rock-forming hydrous magnesium iron phyllosilicate (3Si2O5(OH)4) minerals; they may contain minor amounts of other elements including chromium, manganese, cobalt and nickel. In mineralogy and gemology, serpentine may refer to any of 20 varieties belonging to the serpentine group. Owing to admixture, resulting from originally high magnesium limestone or dolostone with silica impurities. These various impurities have been mobilized and recrystallized by the intense pressure and heat of the metamorphism.
Types
Historically notable marble varieties and locations:
Uses
Sculpture
White marble was prized for its use in sculptures since classical times. This preference has to do with the softness and relative isotropy and homogeneity, and a relative resistance to shattering. Also, the low index of refraction of calcite allows light to penetrate several millimeters into the stone before being scattered out, resulting in the characteristic "waxy" look which gives "life" to marble sculptures of the human body.
Construction marble
Construction marble is a stone which is composed of calcite, dolomite or serpentine which is capable of taking a polish.[5] More generally in construction, specifically the dimension stone trade, the term "marble" is used for any crystalline calcitic rock (and some non-calcitic rocks) useful as building stone. For example, Tennessee marble is really a dense granular fossiliferous gray to pink to maroon Ordovician limestone that geologists call the Holston Formation.
Industrial use
Blocks of cut marble at the historic mill in Marble, Colorado.Colorless or light-colored marbles are a very pure source of calcium carbonate, which is used in a wide variety of industries. Finely ground marble or calcium carbonate powder is a component in paper, and in consumer products such as toothpaste, plastics, and paints. Ground calcium carbonate can be made from limestone, chalk, and marble; about three-quarters of the ground calcium carbonate worldwide is made from marble. Ground calcium carbonate is used as a coating pigment for paper because of its high brightness and as a paper filler because it strengthens the sheet and imparts high brightness. Ground calcium carbonate is used in consumer products such as a food additive, in toothpaste, and as an inert filler in pills. It is used in plastics because it imparts stiffness, impact strength, dimensional stability, and thermal conductivity. It is used in paints because it is a good filler and extender, has high brightness, and is weather resistant. However, the growth in demand for ground calcium carbonate in the last decade has mostly been for a coating pigment in paper.
Calcium carbonate can also be reduced under high heat to calcium oxide (also known as "lime"), which has many applications including being a primary component of many forms of cement.
Mississippian marble in Big Cottonwood Canyon, Wasatch Mountains, Utah, USA.Production
Black Dębnik marble portal (17th century) of St. Wojciech's Church in Kraków.According to the United States Geological Survey, U.S. dimension marble production in 2006 was 46,400 tons valued at $18.1 million, compared to 72,300 tons valued at $18.9 million in 2005. Crushed marble production (for aggregate and industrial uses) in 2006 was 11.8 million tons valued at $116 million, of which 6.5 million tons was finely ground calcium carbonate and the rest was construction aggregate. For comparison, 2005 crushed marble production was 7.76 million tons valued at $58.7 million, of which 4.8 million tons was finely ground calcium carbonate and the rest was construction aggregate. U.S. dimension marble demand is about 1.3 million tons. The DSAN World Demand for (finished) Marble Index has shown a growth of 12% annually for the 2000-2006 period, compared to 10.5% annually for the 2000–2005 period. The largest dimension marble application is tile.
Artificial marble
Marble dust is combined with cement or synthetic resins to make reconstituted or cultured marble. The appearance of marble can be simulated with faux marbling, a painting technique that imitates the stone's color patterns.
Cultural associations
Marble from Italy. Ancient marble columns in the prayer hall of the Mosque of Uqba, in Kairouan, TunisiaAs the favorite medium for Greek and Roman sculptors and architects (see classical sculpture), marble has become a cultural symbol of tradition and refined taste. Its extremely varied and colorful patterns make it a favorite decorative material, and it is often imitated in background patterns for computer displays, etc.
Places named after the stone include Marblehead, Ohio; Marble Arch, London; the Sea of Marmara; India's Marble Rocks; and the towns of Marble, Minnesota; Marble, Colorado; and Marble Hill, Manhattan, New York. The Elgin Marbles are marble sculptures from the Parthenon that are on display in the British Museum. They were brought to Britain by the Earl of Elgin.
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Wed, 07 Jul 2010 19:13:22 GMT+00:00
The Riverdale Press cooling centers, including one at Marble Hill Senior Services, have been welcoming people throughout the heat wave. yannel rosario cools off in an open ...
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Wild Cannabis hashish plants around there We visited Tiger leaping Valley where Chang Jiang River made one of the deepest vally in the word The roadside cliff is made of Marble Memorable photo was taken with Dr Thomas Shoepke the author of Plant Image Gallery which includs my plant photos as well Over the cliff is continuous
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Fri, 03 Sep 2010 04:17:15 GM
Fuel tanker grounded in Northwest Passage t's the third such incident in Arctic waters this summer. Another fuel tanker ran aground off Pangnirtung, Nunavut, earlier this month as it attempted to offload fuel to the community. ...
