alabaster


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alabaster,

fine-grained, massive, translucent variety of gypsumgypsum
, mineral composed of calcium sulfate (calcium, sulfur, and oxygen) with two molecules of water, CaSO4·2H2O. It is the most common sulfate mineral, occurring in many places in a variety of forms. A transparent crystalline variety is selenite.
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, 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 seawater. It is soft enough to be scratched with a fingernail and hence it is easily broken, soiled, and weathered. Because of its softness, alabaster is often carved for statuary and other decorative purposes. It is quarried in England and also in Italy. Vases and statuettes of Italian alabaster are sold as "Florentine marbles." The term "Oriental alabaster" is a misnomer and actually refers to marblemarble,
metamorphic rock composed wholly or in large part of calcite or dolomite crystals, the crystalline texture being the result of metamorphism of limestone by heat and pressure.
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, a calcium carbonate; whereas gypsum is a calcium sulfate. Important sources of alabaster are Algeria, Egypt, Iran, and Mexico (from which it is exported under the name Mexican onyx); in the United States there are important sources in Utah and Arizona. Oriental alabaster (marble) was extensively used by the Egyptians in sarcophagi, in the linings of tombs, in the walls and ceilings of temples, and in vases and sacrificial vessels. The Romans worked the Algerian and Egyptian quarries and used the stone for similar purposes. In modern times it was used by Muhammad Ali for his mosque in Cairo. The French make extensive use of alabaster in interior decoration.

alabaster

A fine-grained, translucent variety of very pure gypsum, white or delicately shaded, and used for ornamental work.
See also: Stone

alabaster

[′al·ə‚bas·tər]
(mineralogy)
CaSO4·2H2O A fine-grained, colorless gypsum.

alabaster

Fine-grained, translucent variety of very pure gypsum, generally white or delicately shaded.

alabaster

1. a fine-grained usually white, opaque, or translucent variety of gypsum used for statues, vases, etc.
2. a variety of hard semitranslucent calcite, often banded like marble
References in periodicals archive ?
There is every indication that the Alabaster head pastor did not think through his 'Godly Counsel' to the President.
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Summary: A deteriorated alabaster bust of a man, who might be the tomb's owner, was also found inside the tomb.
Soon arriving is Robert Pattinson's Samuel Alabaster, who enlists Parson Henry (David Zellner) -- the Monument Valley traveler, having inherited the pastor's robe and Bible -- to marry him and his fiancee, Penelope (Wasikowska).
A compelling and deftly crafted novel by Chris Aslan, "Alabaster" brings a first-century Middle Eastern village and its culture to life for modern-day readers.
Items discovered during the dig include a complete Egyptian alabaster flask, painted with a garland of lotus flowers, a storage stirrup jar imported from Crete, an alabaster vase, a large grey-black stone jar, and an amphoroid Mycenaean crater decorated with birds.
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In 2013, Alabaster City Schools separated from Shelby County Schools to become its own district with 6,000 students--including 9 percent who need special education services, 1,000 who speak English as a second language, and nearly 40 percent who qualify for free or reduced lunch.
Critique: A unique blend of historical fantasy and contemporary mystery, "The Immortal: Alabaster" by Glenn Rogers is a deftly crafted, solidly entertaining, and riveting read from beginning to end.