Malachite
UNB-2017-0118Minerals » Carbonates
Description
Eight pieces of polished oval flat Malachite with various shapes and patterns of banded light to dark green.
Malachite (Cu2CO3(OH)2) can be emerald-green, grass-green or dark in green in colour. Lustre can be adamantine, silky or dull and streak is light green. Hardness is 3 1/2 to 4 and cleavage is perfect in one direction crosswise. Malachite usually occurs as radial, fibrous, botryoidal, stalactitic, incrusting or earthy form. Malachite can also occurs as crystals (rare) and be long or short prismatic forms.
Specifications
| Object name | Malachite |
|---|---|
| ID | UNB-2017-0118 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Carbonates |
| Composition |
|
| Origin | Unknown |
| Pieces | 8 |
| Partial | No |
| Measurements |
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.