Haapalaite
2[(Fe,Ni)S] • 1.61[(Mg,Fe)(OH)2] [CNMNC approved formula]
Named for Paavo Haapala (1906-), Finnish geologist.
| IMA status : | Approved Species 1973 () |
| CLASSIFICATION | |
| Dana (8th edition) : |
02.14.03.01 |
| (02) Sulfides - Including Selenides and Tellurides | |
| (02.14) (Hydroxyl or Hydrated) | |
| (02.14.03) | |
| Nickel-Strunz (10th edition) : |
02.FD.30 |
| (02) Sulfides | |
| (02.F) Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O | |
| (02.FD) With O, OH, H2O | |
| Crystal system: | Trigonal System |
| Point group (H-M): | 3m (or 3 2/m) — hexagonal-scalenohedral |