Difference between revisions of "Buttgenbachite"
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| + | [[File:Buttgenbachite R090013 Sample Photo 24414 M.jpg|thumb|Buttgenbachite<br>Image credit: [https://rruff.info/buttgenbachite/display=default/ RRUFF]]] | ||
== Description == | == Description == | ||
| − | + | [[File:Buttgenbachite Raman RRUFF R090013.png|thumb|Raman of buttgenbachite<br>Image credit: [https://rruff.info/buttgenbachite/display=default/ RRUFF]]] | |
An azure blue corrosion product found in some artificial copper patinas. Its composition is Cu19Cl4(NO3)2(OH)32. | An azure blue corrosion product found in some artificial copper patinas. Its composition is Cu19Cl4(NO3)2(OH)32. | ||
==Physical and Chemical Properties== | ==Physical and Chemical Properties== | ||
| − | + | * Composition = Cu<sub>19</sub>C<sub>l4</sub>(NO<sub>3</sub>)<sub>2</sub>(OH)<sub>32</sub> | |
| − | Luster=vitreous to glassy | + | * Luster=vitreous to glassy |
==Resources and Citations== | ==Resources and Citations== | ||
Revision as of 13:46, 7 December 2022
Description
An azure blue corrosion product found in some artificial copper patinas. Its composition is Cu19Cl4(NO3)2(OH)32.
Physical and Chemical Properties
- Composition = Cu19Cl4(NO3)2(OH)32
- Luster=vitreous to glassy
Resources and Citations
- J. Riederer, "Zur Historischen Entwicklung der Kenntnis von Korrosionsprodukten auf Kulturgeschichtlichen Objekten aus Kupferleigierungen" Berliner Beitrage zur Archaometrie 11:93-111.