Olivenite [ Cu2(AsO4)(OH) ]
![Crystals of oliventite [ Cu2(AsO4)(OH) ] on a contrasting matrix of microcrystalline duftite [ CuPb(AsO4 )(OH) ], from Tsumeb Mine, Otjikoto Region, Namibia. Size: 5.6 x 3.3 x 2.1 cm, with crystals to 1.4 cm in size. Probably a very old piece from the upper oxidation levels of Tsumeb, and 100 years old. Photo by Rob Lavinsky, iRocks.com – CC-BY-SA-3.0](https://commons.wikimedia.org/wiki/File:Olivenite-Duftite-177539.jpg){kind=link}
Material properties
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Monoclinic, Point group 2/m, Space group P21/m (#11) |
| Tags | Hydroxide , Mineral, Arsenate |
Composition
| Element | Atoms |
|---|---|
| H | 1 |
| As | 1 |
| O | 5 |
| Cu | 2 |
| Total: | 9 |