Difference between revisions of "Paratacamite"
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== Description == | == Description == | ||
| − | A light green, chlorinated copper corrosion product. Paratacamite is | + | A light green, chlorinated copper corrosion product. Paratacamite is composed of basic copper chloride and has been found as a [[green pigments|green pigment]] in 5th - 8th century Asian wall paintings, as well as in some later Persian miniature and European paintings. On [[copper]] and [[bronze]] artifacts, paratacamite and [[atacamite]] indicate the presence of [[bronze disease]]. |
[[[SliderGallery rightalign|Paratacamite.PNG~FTIR (MFA)]]] | [[[SliderGallery rightalign|Paratacamite.PNG~FTIR (MFA)]]] | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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==Resources and Citations== | ==Resources and Citations== | ||
* Webmineral: [http://www.webmineral.com/data/Paratacamite.shtml#.Y5OAdijMJUM Paratacamite] | * Webmineral: [http://www.webmineral.com/data/Paratacamite.shtml#.Y5OAdijMJUM Paratacamite] | ||
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* Wikipedia: [https://en.wikipedia.org/wiki/Paratacamite Paratacamite] | * Wikipedia: [https://en.wikipedia.org/wiki/Paratacamite Paratacamite] | ||
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* ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996 Comment: 'Pigment' | * ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996 Comment: 'Pigment' | ||
Latest revision as of 10:55, 12 March 2025
Paratacamite from Levant mine, England; Wikipedia[1]
Description
A light green, chlorinated copper corrosion product. Paratacamite is composed of basic copper chloride and has been found as a green pigment in 5th - 8th century Asian wall paintings, as well as in some later Persian miniature and European paintings. On Copper and Bronze artifacts, paratacamite and Atacamite indicate the presence of Bronze disease.
Synonyms and Related Terms
basic copper chloride; Paratacamit (Deut.); para atacamiet (Ned.);
Physical and Chemical Properties
- Composition = Cu(OH)2-CuCl
- Description = Dark green, massive or rhombohedral crystals
- Fracture = Conchoidal
- Luster = Vitreous to dull
- Streak = light green
- Hardness = 3
- Density = 3.74 g/cm3
Resources and Citations
- Webmineral: Paratacamite
- Wikipedia: Paratacamite
- The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: 'Pigment'