| Name: | Sederholmite Sdh |
| IMA Chemistry: | NiSe |
| Chemistry Elements: | The mineral Sederholmite contains elements: Nickel (Ni) Selenium (Se) |
| Country of Type Locality: | Finland |
| Year First Published: | 1964 |
| IMA Status: | Approved |
| Status Notes: | Vuorelainen Y, Huhma A, Häkli A (1964) Sederholmite, wilkmanite, kullerudite, mäkinenite, and trüstedtite, five new nickel selenide minerals, Comptes Rendus de la Société Géologique de Finlande 36, 113-125 |
| Structural Group Name: | Nickeline |
| Fleischer's Group Name: | nickeline |
| Crystal Systems: | hexagonal |
| Oldest Known Age: | 2100 Million Years Ago |
| More Info: | Search Wikipedia: Sederholmite (Wiki) Search Mindat: Sederholmite Search Web Mineral DB: Sederholmite |