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metamorphic rockrock,
aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes—igneous, sedimentary, and metamorphic.
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 composed wholly or in large part of calcitecalcite
, very widely distributed mineral, commonly white or colorless, but appearing in a great variety of colors owing to impurities. Chemically it is calcium carbonate, CaCO3, but it frequently contains manganese, iron, or magnesium in place of the calcium.
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 or dolomitedolomite
. 1 Mineral, calcium magnesium carbonate, CaMg (CO3)2. It is commonly crystalline and is white, gray, brown, or reddish in color with a vitreous to pearly luster. The magnesium is sometimes replaced in part by iron or manganese.
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 crystals, the crystalline texture being the result of metamorphismmetamorphism,
in geology, process of change in the structure, texture, or composition of rocks caused by agents of heat, deforming pressure, shearing stress, hot, chemically active fluids, or a combination of these, acting while the rock being changed remains essentially in the
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 of limestonelimestone,
sedimentary rock wholly or in large part composed of calcium carbonate. It is ordinarily white but may be colored by impurities, iron oxide making it brown, yellow, or red and carbon making it blue, black, or gray. The texture varies from coarse to fine.
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 by heat and pressure. The term marble is loosely applied to any limestone or dolomite that takes a good polish and is otherwise suitable as a building stone or ornamental stone. Marbles range in color from snow-white to gray and black, many varieties being some shade of red, yellow, pink, green, or buff; the colors, which are caused by the presence of impurities, are frequently arranged in bands or patches and add to the beauty of the stone when it is cut and polished. Marble is used as a material in statuary and monuments, as a facing stone in buildings and residences, and for pillars, colonnades, paneling, wainscoting, and floor tiles. Like all limestones, it is corroded by water and acid fumes and is thus ultimately an uneconomical material for use in exposed places and in large cities. The presence of certain impurities decreases its durability. Marble was extensively used by the ancient Greeks; the Parthenon and other famous buildings were constructed of white Pentelic marble from Mt. Pentelicus in Attica, and the finest statues, e.g., the Venus de' Medici, from the remarkably lustrous Parian marble from Paros in the Cyclades. These same quarries were later used by the Romans. Among the famous marbles of Italy are the Carrara and Siena marbles of Tuscany, which were used by the Romans and the Italian sculptors of the Renaissance. Marbles are quarried in all parts of the world. The finest marbles in the United States come from Vermont, which produces large quantities. Other states important as marble producers are Massachusetts, Maryland, Tennessee, Alabama, Georgia, Missouri, California, Colorado, and Arizona. See alabasteralabaster,
fine-grained, massive, translucent variety of gypsum, a hydrous calcium sulfate. It is pure white or streaked with reddish brown. Alabaster, like all other forms of gypsum, forms by the evaporation of bedded deposits that are precipitated mainly from evaporating
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Metamorphic rock made up largely of calcite or dolomite; capable of taking a high polish, and used especially in architecture and sculpture; numerous minerals account for its distinctive appearance.
See also: Stone



a crystalline rock formed as a result of the recrystallization of limestone or dolomite. The term “marble” is applied commercially to any metamorphic rock of medium hardness that can be polished; this category of rock includes marble, marmorized limestone, dense dolomite, ophicalcite, calcareous breccia, and calcareous conglomerates. Marble almost always contains impurities of other minerals (quartz, chalcedony, hematite, pyrite, limonite, chlorite), as well as organic compounds. The impurities have a varying effect on the quality of the marble, increasing or decreasing its decorativeness.

Marble has a specific gravity of 2.65–2.90 and a compressive strength ranging from 50 to 250 meganewtons per square meter (500–2, 500 kilograms-force per square meter). The abradability is from 0.40 to 3.20 g/cm2, and the water absorption is from 0.15 to 0.50 percent. Finely crystalline marble with dentate bounding of the grains is the most durable and takes the best polish. Structurally uniform marbles are frost resistant.

The color of the marble depends on the impurities. The majority of colored marbles have mottled coloration; the pattern is determined not only by the structure of the marble but also by the direction along which the rock is cut. The color and pattern of the marble appear after polishing. To determine the industrial value of marble deposits, the proximity of transport facilities and the thickness of the overlying stratum of weathered marble (the maximum is usually 5–8 m) are taken into consideration.

Marble is quarried and, less frequently, mined. To obtain monolithic blocks, stonecutting machines and cable saws are used, as are wedges in bored holes and percussive cutters.

Marble has been used since antiquity in architecture as a structural element and as facing owing to its plastic and decorative properties (hardness, fine grain). Marble’s fine grain makes the rock easy to work with and capable of being polished. Polishing reveals the tonal richness of marble and the beauty of its uniform, patchy, or laminated structure. Marble has been used for making mosaics (the incrustation style and Florentine mosaics), reliefs, and freestanding sculptures (primarily carved from marble of a single color—usually white). The relative transparency of the rock results in the delicate play of light and shadow on the surface of marble scupltures.

In the USSR there are as many as 60 known deposits of marble and marmorized limestone (in Karelia, the Ukraine, the Urals, Transcaucasia, Middle Asia, Siberia, and the Far East). The marble reserves in the USSR are virtually inexhaustible. The best grades of white marble from Soviet deposits are used for sculpturing. Marble deposits in Italy include those in Carrara, which yield the finest marble for sculpturing; this marble is white, brilliant, and easy to polish. The Paros quarry in Greece yields the yellowish marble that was used by ancient Greek sculptors. Other countries with marble deposits include Cuba, France, Norway, and the United States.


Metrofanov, G. K. , and I. A. Shpanov. Oblitsovochnye i podelochnye kamni SSSR. Moscow, 1970.
Herbeck, A. Der Marmor. Berlin, 1953.



Metamorphic rock composed of recrystallized calcite or dolomite.
Commercially, any limestone or dolomite taking polish.


A metamorphic rock composed largely of calcite or dolomite; often highly polished to enhance its appearance; available in different colors that result from differences in mineral content.


a. a hard crystalline metamorphic rock resulting from the recrystallization of a limestone: takes a high polish and is used for building and sculpture
b. (as modifier): a marble bust
2. a block or work of art of marble
3. a small round glass or stone ball used in playing marbles
4. white like some kinds of marble
References in periodicals archive ?
5 mil - the quantity (m2) of white marble used to build the city
The quality of white marble, the inner walls of the main building and the duplicate sapphires are also losing their shine due to frequent contact by tourists," Singh said.
Caption: Noir goes for the classic black and white marble combo for the Anvil Console, which features an industrial-inspired base for a timeless statement piece.
Italian Ambassador Carlo Romeo said Macedonia had white marble which was a very rare resource and Italy, on the other hand, was the leader in production of marble cutting technology.
This white marble gives high reflectance and has great significance as good quality.
ABSTRACT: The white marble fretwork from 17th century Mughal architecture was investigated to formulate the conservation and restoration strategy and for reproduction in compatible materials.
Two bars face off on either side of the dining room, one clad in white marble, the other in black-veined stone, while large-scale black and white modern canvasses carry out the two-tone-plus-wood theme.
The sphinx statue, made of white marble according to preliminary research, was intact except for minor damage in the middle of the face.
com) Marble's having a |moment, and Housing Units' Catalina white marble dining collection includes a fashion-conscious table and six chairs, reduced to PS1,699 from PS2,693 (housingunits.
We ended up removing some slabs in favor of plain white marble and wood, says Aivee.
50, Dotcomgiftshop White marble star decoration, PS4.
He cited in a statement to SANA two pots made of white marble as example of the deep-rooted skillfulness of the Syrian craftsmen.