Difference between revisions of "Pseudomalachite"
Jump to navigation
Jump to search
m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==") |
|||
| Line 10: | Line 10: | ||
[[[SliderGallery rightalign|pseudomalachiteRS.jpg~Raman|Pseudomalachite (HU Mineral Museum).PNG~FTIR]]] | [[[SliderGallery rightalign|pseudomalachiteRS.jpg~Raman|Pseudomalachite (HU Mineral Museum).PNG~FTIR]]] | ||
| − | == | + | == Physical and Chemical Properties == |
| − | Crystals = massive Fracture = conchoidal | + | * Crystals = massive |
| − | + | * Fracture = conchoidal | |
| − | Unlike malachite, pseudomalachite will not react with acids. | + | * Cleavage = imperfect |
| + | * Luster = glassy | ||
| + | * Streak = bluish green | ||
| + | * Unlike malachite, pseudomalachite will not react with acids. | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 25: | Line 28: | ||
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 3.6-4.34 | + | | 3.6-4.34 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 34: | Line 37: | ||
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | |||
| − | |||
| − | + | * MinDat: [http://mineral.galleries.com/minerals/phosphat/pseudoma/pseudoma.htm Pseudomalachite] | |
| − | * | + | * Naumova et al. Studies in Conservation 35:81-88, 1990 |
| − | |||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 15:09, 22 October 2022
Description
Dark waxy green crystals composed of basic copper phosphate. Pseudomalachite occurs naturally in the oxidation zones for copper ores. It resembles Malachite in appearance but lacks the characeristic light/dark banding of malachite. Pseudomalachite has been found in Zaire (Shaba), Slovakia (Libethen), Germany (Bavaria), France, Russia, Canada and the U.S. (Arizona).
Synonyms and Related Terms
basic copper phosphate; false malachite; ehlite; lunnite; Pseudomalachit (Deut.)
.PNG)
Physical and Chemical Properties
- Crystals = massive
- Fracture = conchoidal
- Cleavage = imperfect
- Luster = glassy
- Streak = bluish green
- Unlike malachite, pseudomalachite will not react with acids.
| Composition | Cu5(PO4)2(OH)4 |
|---|---|
| Mohs Hardness | 4.0-4.5 |
| Density | 3.6-4.34 g/ml |
| Molecular Weight | 542.68 |
| Refractive Index | 1.791; 1.856; 1.867 |
Resources and Citations
- MinDat: Pseudomalachite
- Naumova et al. Studies in Conservation 35:81-88, 1990