| Name: | Oneillite One |
| IMA Chemistry: | Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 |
| Chemistry Elements: | The mineral Oneillite contains elements: Sodium (Na) Calcium (Ca) Manganese (Mn) Iron (Fe) Zirconium (Zr) Niobium (Nb) Silicon (Si) Oxygen (O) Hydrogen (H) Chlorine (Cl) |
| Country of Type Locality: | Canada |
| Year First Published: | 1998 |
| IMA Status: | Approved |
| Status Notes: | Johnsen O, Grice J D, Gault R A (1999) Oneillite: A new Ca-deficient and REE-rich member of the eudialyte group from Mont Saint-Hilaire, Quebec, Canada, The Canadian Mineralogist 37, 1295-1301 |
| Structural Group Name: | Eudialyte |
| Fleischer's Group Name: | eudialyte |
| Crystal Systems: | hexagonal |
| Oldest Known Age: | 124 Million Years Ago |
| Mohs Hardness: | 5.5 |
| Diaphaneity: | 2.0 |
| More Info: | Search Wikipedia: Oneillite (Wiki) Search Mindat: Oneillite Search Web Mineral DB: Oneillite |