Difference between revisions of "Gallstone"

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== Description ==
 
== Description ==
  
An obsolete organic colorant thought to have come from gallstone of an ox. Gallstones were ground into a golden yellow powder then mixed with gum arabic for a transparent yellow paint. By the end of the 18th century, a substitute made from [http://cameo.mfa.org/materials/fullrecord.asp?name=quercitron quercitron] yellow was sold under the name of gallstone. Both colorants were fugitive and rarely used in paints.
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An obsolete organic colorant thought to have come from gallstone of an ox. Gallstones were ground into a golden yellow powder then mixed with gum arabic for a transparent yellow paint. By the end of the 18th century, a substitute made from [[quercitron]] yellow was sold under the name of gallstone. Both colorants were fugitive and rarely used in paints.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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gall stone;
 
gall stone;
  
== Authority ==
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==Resources and Citations==
  
 
* 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)

Latest revision as of 12:26, 25 July 2022

Description

An obsolete organic colorant thought to have come from gallstone of an ox. Gallstones were ground into a golden yellow powder then mixed with gum arabic for a transparent yellow paint. By the end of the 18th century, a substitute made from Quercitron yellow was sold under the name of gallstone. Both colorants were fugitive and rarely used in paints.

Synonyms and Related Terms

gall stone;

Resources and Citations

  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • R.D. Harley, Artists' Pigments c. 1600-1835, Butterworth Scientific, London, 1982