| Name: | Polycrase-(Y) Plc-Y |
| IMA Chemistry: | Y(Ti,Nb)2(O,OH)6 |
| Chemistry Elements: | The mineral Polycrase-(Y) contains elements: Yttrium (Y) Titanium (Ti) Niobium (Nb) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Norway |
| Year First Published: | 1844 |
| IMA Status: | Approved,Discredited,Renamed |
| Status Notes: | Scheerer T (1844) Polykras und Malakon, zwei neue Mineralspecies. Annalen der Physik und Chemie 62, 429-443 Name changed from polycrase: Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature, American Mineralogist 72, 1031-1042 Discredited as being identical to euxenite-(Y): Miyawaki R, Hatert F, Pasero M, Mills S J (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 68. Mineralogical Magazine 86, 854-859 |
| Structural Group Name: | Columbite |
| Fleischer's Group Name: | columbite-euxenite-euxenite subgroup |
| Crystal Systems: | |
| Oldest Known Age: | 2815 Million Years Ago |
| More Info: | Search Wikipedia: Polycrase-(Y) (Wiki) Search Mindat: Polycrase-(Y) Search Web Mineral DB: Polycrase-(Y) |