| Name: | Keystoneite Kys |
| IMA Chemistry: | Mg0.5NiFe3+(Te4+O3)3ยท4H2O |
| Chemistry Elements: | The mineral Keystoneite contains elements: Magnesium (Mg) Nickel (Ni) Iron (Fe) Tellurium (Te) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1987 |
| IMA Status: | Approved |
| Status Notes: | Missen O P, Back M E, Mills S J, Roberts A C, LePage Y, Pinch W W, Mandarino J A (2021) Crystal chemistry of zemannite-type structures: III. Keystoneite, the Ni^2+^-analogue of zemannite, and ferrotellurite discredited. The Canadian Mineralogist 59, 355-364 |
| Structural Group Name: | Zemannite |
| Fleischer's Group Name: | zemannite |
| Crystal Systems: | hexagonal |
| Oldest Known Age: | 65.5 Million Years Ago |
| More Info: | Search Wikipedia: Keystoneite (Wiki) Search Mindat: Keystoneite Search Web Mineral DB: Keystoneite |