Difference between revisions of "Crust"
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== Description == | == Description == | ||
| − | A hard covering or coat on the surface of another material. In minerals, a crust on one mineral may be redeposited over another. Weathering may oxidize or deteriorate the surface of some materials forming a hard, sometimes protective, crust. A crust may also be formed by pollution. See [ | + | A hard covering or coat on the surface of another material. In minerals, a crust on one mineral may be redeposited over another. Weathering may oxidize or deteriorate the surface of some materials forming a hard, sometimes protective, crust. A crust may also be formed by pollution. See [[black crust]], [[gypsum crust]], [[gypcrete]], and [[caliche]]. |
[[File:84.19-SC71187_RL .jpg|thumb|'''MFA Acc. #:''' 84.19]] | [[File:84.19-SC71187_RL .jpg|thumb|'''MFA Acc. #:''' 84.19]] | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 12:58, 13 January 2014
File:Image3 802477.jpg
MFA Acc. #: 87.446
Description
A hard covering or coat on the surface of another material. In minerals, a crust on one mineral may be redeposited over another. Weathering may oxidize or deteriorate the surface of some materials forming a hard, sometimes protective, crust. A crust may also be formed by pollution. See Black crust, Gypsum crust, Gypcrete, and Caliche.
Synonyms and Related Terms
crusting; incrustation; encrustation; black crust; gypsum crust; caliche; gypcrete
Additional Images
Black crust
Black crust
Salt crust
Authority
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
- Encyclopedia Britannica, http://www.britannica.com Comment: "crust" Encyclopædia Britannica Premium Service. [Accessed 18 Oct. 2005].
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Crust (accessed Jan 6, 2006)
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000