Atacamite
| ID | 75 | |
|---|---|---|
| Mineral | Atacamite | |
| Location | Atacama Desert - Chile | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Atacamite information at mindat.org |
|
Mindat data
| ID | 406 |
|---|---|
| Long ID | 1:1:406:6 |
| Formula |
Cu2Cl(OH)3
|
| IMA Status |
0 1 |
| Occurrence | An oxidation product of other copper minerals under arid conditions |
| Other Occurrences | An oxidation product of other copper minerals, especially under arid, saline conditions; in fumarolic deposits; a weathering product of sulphides in submarine black smoker deposits; an alteration product of bronze and copper objects of antiquity. |
| Industrial | Ore of copper. |
| Discovery Year | 1801 |
| Diapheny | Transparent,Translucent |
| Cleavage | On {010}, fair on {101}. |
| Tenacity | brittle |
| Colour | Bright green, dark emerald-green to blackish green; shades of green in transmitted light. |
| Hardness (min) | 3.0 |
| Hardness (max) | 3.5 |
| Luminescence | None |
| Lustre | Adamantine to Vitreous |
| About the name | Named in 1802 by Dmitri de Gallitzin after the type locality, in the Atacama Desert of northern Chile. |
| Streak | Apple-green. |
| Crystal System | Orthorhombic |
| Cleavage Type | Perfect |
| Fracture type | Conchoidal |
| Morphology |
Slender crystals, to 10 cm, prismatic along [001]; striated parallel to [001], on {010} parallel to |
| Twinning | Rare, with twin and composition plane {110}; more common about [544]. Doublets, triplets, both contact and penetration, and complex groups result from twinning. |
| key_elements |
0 1 |
| shortcode_ima | Ata |
| Group | Atacamite Group |
Details
Price: € 20
Dimensions: Not registered
Weight: 48 g
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Cl | Chlorine |
|
| Cu | Copper | |
| H | Hydrogen | |
| O | Oxygen |