soapstone


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soapstone

or

steatite

(stē`ətīt), metamorphic rock of which the characteristic and usually chief mineral is talctalc,
mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel.
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, but which also contains varying parts of chlorite, mica, tremolite, quartz, magnetite, and iron compounds. It is gray to green in color, has a soapy feel, and is notable for its high degree of resistance to acids and heat. It is so soft that it can be easily cut with a knife or other sharp tool, making it a popular material for sculpting. The chief deposits of commercial importance are in the United States, Norway, and Canada. It is used in the manufacture of laboratory table tops, kitchen sinks, laundry tubs, furnace linings, and electrical apparatus.

Soapstone

 

a dense, dark greenish-gray rock, consisting basically of an aggregate of tiny flakes of talc and chlorite. Dolomite, magnesite, and other magnesium-calcium carbonates are also commonly found in soapstone. It can easily be cut with a knife and is formed as a result of metamorphosis and hydrochemical transformation of ultrabasic serpentine rock, diabases, and magnesian schists. Soapstone is used in the manufacture of dishes, pots, and jugs in Iran, Turkey, India, and Afghanistan. It has technological applications as a heat-resistant material. In the USSR deposits of soapstone are found in the Karelian ASSR and in the Urals.

soapstone

[′sōp‚stōn]
(mineralogy)
A mineral name applied to steatite or to massive talc. Also known as soaprock.
(petrology)
A metamorphic rock characterized by massive, schistose, or interlaced fibrous texture and a soft unctuous feel.

soapstone

Massive soft rock that contains a high proportion of talc; used as dimension stone for laboratory sinks, bench tops, carved ornaments, and electrical panels. Also see steatite.

soapstone

a massive compact soft variety of talc, used for making tabletops, hearths, ornaments, etc.
References in periodicals archive ?
Soapstone and slate should be oiled with mineral oil several times a year, which will help them resist staining.
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The physical properties make soapstone valuable for many different uses.
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While a number of historic carvings are evident on the soapstone outcrops, previous analysis has suggested that these are of twentieth-century origin.
A nine-year-old Cree boy looks forward to the spring when a travelling soapstone carver visits the lodge his parents run.
Working closely with the Fort Collins Museum of Discovery, Colorado State University's Laboratory for Public Archaeology, and Native American Indian groups, the Natural Areas Department's education team carefully crafted a two-day mandatory training in 2009 for all staff and those volunteer educators who wanted to deliver programs at Soapstone Prairie Natural Area.
A set of three Qianlong princely soapstone seals with fitted zitan box are displayed during a preview by auction house Sotheby's in Hong Kong on August 28.
Steven Chavez and Justin English have been in the soapstone wholesale and fabrication business with Denver-based Dorado Soapstone since 2001.
The teardrop-shaped lights of the Fadi series are uniquely pieced together with deep black soapstone and polished aluminium.
PICK up this soapstone cat and mouse ornament, left, pounds 12.