Difference between revisions of "Luster glaze"

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[[File:65.1710-142-3.jpg|thumb|]]
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[[File:65.1710-142-3.jpg|thumb|Red-blue reduction glaze<br>MFA# 65.1710]]
 
== Description ==
 
== Description ==
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[[File:1991.421a-c-SC67708.jpg|thumb|Copper splash luster<br>MFA# 1991.421a]]
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Thin metallic films that produce an iridescent effect on ceramics or glass. Luster glazes have been used since the 9th century in the Middle East ceramics. Spanish and Italian majolica pottery was produced by a multistep technique in which the metallic glaze was applied over a fired glaze then the ceramic was refired to adhere the two layers. The thin metallic layer is obtained with either reducing salts or a reducing atmosphere.  By the 19th century, a single step technique was developed in England that produced an overall luster glaze.  Various colors were obtained using reducing salts of [[silver]] (yellow), [[bismuth]] (pearly effect), [[platinum]] (silvery), [[copper]] (gold or red), and [[gold]] (ruby red). Arabian lusters are obtained using [[silver sulfide]], [[cinnabar]], [[hematite|iron oxide]], and [[alum]].
  
Thin metallic films that produce an iridescent effect on ceramics or glass. Luster glazes have been used since the 9th century in the Middle East ceramics. Spanish and Italian majolica pottery was produced by a multistep technique in which the metallic glaze was applied over a fired glaze then the ceramic was refired to adhere the two layers. The thin metallic layer is obtained with either reducing salts or a reducing atmosphere.  By the 19th century, a single step technique was developed in England that produced an overall luster glaze.  Various colors were obtained using reducing salts of [http://cameo.mfa.org/materials/fullrecord.asp?name=silver silver] (yellow), [http://cameo.mfa.org/materials/fullrecord.asp?name=bismuth bismuth] (pearly effect), [http://cameo.mfa.org/materials/fullrecord.asp?name=platinum platinum] (silvery), [http://cameo.mfa.org/materials/fullrecord.asp?name=copper copper] (gold or red), and [http://cameo.mfa.org/materials/fullrecord.asp?name=gold gold] (ruby red). Arabian lusters are obtained using [http://cameo.mfa.org/materials/fullrecord.asp?name=silver%20sulfide silver sulfide], [http://cameo.mfa.org/materials/fullrecord.asp?name=cinnabar cinnabar], [http://cameo.mfa.org/materials/fullrecord.asp?name=hematite iron oxide], and [http://cameo.mfa.org/materials/fullrecord.asp?name=alum alum].
 
 
[[File:1991.421a-c-SC67708.jpg|thumb|]]
 
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
metallic luster; Arabian luster; Spanish luster; lusterware; lustreware; majolica; lustre (Fr., Port.)
 
metallic luster; Arabian luster; Spanish luster; lusterware; lustreware; majolica; lustre (Fr., Port.)
  
== Other Properties ==
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==Physical and Chemical Properties==
  
 
Typical iridescent colors include:
 
Typical iridescent colors include:
  
early Spanish = gold to greenish; tarnished copper
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* early Spanish = gold to greenish; tarnished copper
 
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* 17th c. Spanish = bright reddish copper
17th c. Spanish = bright reddish copper
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* 16th c. Italian = ruby-red; golden yellow
 
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* late 18th c. Europe and England = silvery
16th c. Italian = ruby-red; golden yellow
 
 
 
late 18th c. Europe and England = silvery
 
  
== Authority ==
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==Resources and Citations==
  
 
* Robert Fournier, ''Illustrated Dictionary of Practical Pottery'', Chilton Book Company, Radnor, PA, 1992
 
* Robert Fournier, ''Illustrated Dictionary of Practical Pottery'', Chilton Book Company, Radnor, PA, 1992
  
* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "lustreware." Encyclopædia Britannica. 1 Oct. 2004 . (for time periods and colors)
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "lustreware." Accessed 1 Oct. 2004. (for time periods and colors)
  
 
* ''Materials & Techniques in the Decorative Arts'', Lucy Trench (ed.), John Murray, London, 2000
 
* ''Materials & Techniques in the Decorative Arts'', Lucy Trench (ed.), John Murray, London, 2000

Latest revision as of 15:30, 26 September 2022

Red-blue reduction glaze
MFA# 65.1710

Description

Copper splash luster
MFA# 1991.421a

Thin metallic films that produce an iridescent effect on ceramics or glass. Luster glazes have been used since the 9th century in the Middle East ceramics. Spanish and Italian majolica pottery was produced by a multistep technique in which the metallic glaze was applied over a fired glaze then the ceramic was refired to adhere the two layers. The thin metallic layer is obtained with either reducing salts or a reducing atmosphere. By the 19th century, a single step technique was developed in England that produced an overall luster glaze. Various colors were obtained using reducing salts of Silver (yellow), Bismuth (pearly effect), Platinum (silvery), Copper (gold or red), and Gold (ruby red). Arabian lusters are obtained using Silver sulfide, Cinnabar, iron oxide, and Alum.

Synonyms and Related Terms

metallic luster; Arabian luster; Spanish luster; lusterware; lustreware; majolica; lustre (Fr., Port.)

Physical and Chemical Properties

Typical iridescent colors include:

  • early Spanish = gold to greenish; tarnished copper
  • 17th c. Spanish = bright reddish copper
  • 16th c. Italian = ruby-red; golden yellow
  • late 18th c. Europe and England = silvery

Resources and Citations

  • Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
  • Encyclopedia Britannica, http://www.britannica.com Comment: "lustreware." Accessed 1 Oct. 2004. (for time periods and colors)
  • Materials & Techniques in the Decorative Arts, Lucy Trench (ed.), John Murray, London, 2000