Difference between revisions of "Botallackite"
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| + | [[File:Botallackite-sea82b.jpg|thumb|Botallackite crystals found at Botallack mine in Cornwall England]] | ||
== Description == | == Description == | ||
| − | A light blue-green patina | + | A secondary copper mineral first described at the Botallack mine in Cornwall England. Botallackite has a turquoise color and is composed of Cu2Cl(OH)3 It has a small monoclinic crystal system that is form on copper as a weathering process or with the exposure to salt water or pollutants. It has been found as a light blue-green patina on Egyptian archaeological bronzes (Scott 1990) |
==Resources and Citations== | ==Resources and Citations== | ||
* David Scott, "Bronze Disease: A Review of Some Chemical Problems and the Role of Relative Humidity" JAIC, 29(2): 193-206, 1990. | * David Scott, "Bronze Disease: A Review of Some Chemical Problems and the Role of Relative Humidity" JAIC, 29(2): 193-206, 1990. | ||
| + | * Wikipedia: [https://en.wikipedia.org/wiki/Botallackite Botallackite] Accessed March 2025 | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 10:53, 12 March 2025
Description
A secondary copper mineral first described at the Botallack mine in Cornwall England. Botallackite has a turquoise color and is composed of Cu2Cl(OH)3 It has a small monoclinic crystal system that is form on copper as a weathering process or with the exposure to salt water or pollutants. It has been found as a light blue-green patina on Egyptian archaeological bronzes (Scott 1990)
Resources and Citations
- David Scott, "Bronze Disease: A Review of Some Chemical Problems and the Role of Relative Humidity" JAIC, 29(2): 193-206, 1990.
- Wikipedia: Botallackite Accessed March 2025