Difference between revisions of "Tarnish"
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| − | [[File:Image3_802354.jpg|thumb| | + | [[File:Image3_802354.jpg|thumb|tarnished knife<br>MFA# 02.211]] |
== Description == | == Description == | ||
| − | + | [[File:11.10166_det2.jpg|thumb|Tarnish details on inlays<br>MFA# 11.10166]] | |
A discoloration or dulling of a metal surface due [[oxidation|oxidation]] or other chemical reactions. Atmospheric pollutants, such as [[sulfur%20oxide|sulfur oxides]], react with [[silver|silver]] to form a black [[silver%20sulfide|silver sulfide]] tarnish. Addition of [[indium|indium]] to the silver alloy will increase its tarnish resistance (Lewis 1993). [[Copper|Copper]], [[brass|brass]], and [[aluminum|aluminum]] are also susceptible to tarnishing. | A discoloration or dulling of a metal surface due [[oxidation|oxidation]] or other chemical reactions. Atmospheric pollutants, such as [[sulfur%20oxide|sulfur oxides]], react with [[silver|silver]] to form a black [[silver%20sulfide|silver sulfide]] tarnish. Addition of [[indium|indium]] to the silver alloy will increase its tarnish resistance (Lewis 1993). [[Copper|Copper]], [[brass|brass]], and [[aluminum|aluminum]] are also susceptible to tarnishing. | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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<gallery> | <gallery> | ||
| − | File:1999.256.1_tnsh.pot.jpg|Tarnish | + | File:1999.256.1_tnsh.pot.jpg|Tarnish on silver pitcher |
| − | File:1999.256.1_tnish.det.jpg|Tarnish | + | File:1999.256.1_tnish.det.jpg|Tarnish on bottom of silver tray |
| − | File:1999.256.1_tnsh.tray.jpg|Tarnish | + | File:1999.256.1_tnsh.tray.jpg|Tarnish on silver tray |
</gallery> | </gallery> | ||
| − | + | ==Resources and Citations== | |
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* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | ||
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* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 | ||
| − | * | + | * AMOL reCollections Glossary -http://amol.org.au/recollections/7/c/htm |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 07:33, 8 June 2022
Description
A discoloration or dulling of a metal surface due Oxidation or other chemical reactions. Atmospheric pollutants, such as sulfur oxides, react with Silver to form a black Silver sulfide tarnish. Addition of Indium to the silver alloy will increase its tarnish resistance (Lewis 1993). Copper, Brass, and Aluminum are also susceptible to tarnishing.
Synonyms and Related Terms
silver tarnish
Additional Images
Tarnish on silver pitcher
Tarnish on bottom of silver tray
Tarnish on silver tray
Resources and Citations
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- AMOL reCollections Glossary -http://amol.org.au/recollections/7/c/htm