Ahlfeldite
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| Ahlfeldite | |
|---|---|
 Alfredopetrovite, Ahlfeldite, Chalcomenite | |
| General | |
| Category | Selenite mineral |
| Formula | (Ni,Co)SeO3·2H2O |
| IMA symbol | Afe[1] |
| Strunz classification | 4.JH.10 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P21/m |
| Identification | |
| References | [2][3][4] |
Ahlfeldite ((Ni, Co)SeO3]·2H2O) is a mineral of secondary origin. It is named after Friedrich Ahlfeld (1892–1982), a German-Bolivian mining engineer and geologist. Its type locality is Virgen de Surumi mine, Pakajake Canyon, Chayanta Province, Potosí Department, Bolivia.
