Difference between revisions of "Karat"
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Originally a unit of weight, karat is now used as a unit of purity or quality of gold. Pure gold is 24 karat or 1000 fine and a gold alloy that contains 75% gold is 18 karat or 750 fine. The term karat was used in medieval times as a measure of the proportion of gold in a German coin called a mark that weighed 24 carat. | Originally a unit of weight, karat is now used as a unit of purity or quality of gold. Pure gold is 24 karat or 1000 fine and a gold alloy that contains 75% gold is 18 karat or 750 fine. The term karat was used in medieval times as a measure of the proportion of gold in a German coin called a mark that weighed 24 carat. | ||
| − | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=gold | + | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=gold%20stamp gold stamp]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| Line 19: | Line 19: | ||
== Authority == | == Authority == | ||
| − | * | + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Karat." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Karat." Encyclopædia Britannica. 2 Sept. 2004 . |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 07:38, 24 July 2013
Description
Originally a unit of weight, karat is now used as a unit of purity or quality of gold. Pure gold is 24 karat or 1000 fine and a gold alloy that contains 75% gold is 18 karat or 750 fine. The term karat was used in medieval times as a measure of the proportion of gold in a German coin called a mark that weighed 24 carat.
See also gold stamp.
Synonyms and Related Terms
k; carat (secondary spelling for gold purity); carat (Fr.); Karat (Deut.); karaat (Ned.); carate (Port.)
Additional Images
MFA Acc. #: 2006.47
Authority
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Encyclopedia Britannica, http://www.britannica.com Comment: "Karat." Encyclopædia Britannica. 2 Sept. 2004 .