| Name: | Hancockite Hnc |
| IMA Chemistry: | CaPb(Al2Fe3+)[Si2O7][SiO4]O(OH) |
| Chemistry Elements: | The mineral Hancockite contains elements: Calcium (Ca) Lead (Pb) Aluminum (Al) Iron (Fe) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1899 |
| IMA Status: | Approved,Renamed |
| Status Notes: | Originally named hancockite: Penfield S L, Warren C H (1899) Some new minerals from the zinc mines at Franklin, N.J., and note concerning the chemical composition of ganomalite, American Journal of Science 8, 339-353 Name changed from hancockite to epidote-(Pb): Armbruster T, Bonazzi P, Akasaka M, Bermanec V, Chopin C, Giere R, Huess-Assbichler S, Liebscher A, Menchetti S, Pan Y, Pasero M (2006) Recommended nomeclature of epidote-group minerals, European Journal of Mineralogy 18, 551-567 Name changed back to hancockite: Revheim O, King V T (2016) Epidote supergroup nomenclature: The names hancockite, niigataite and tweddillite reinstated. Mineralogical Magazine 80, 877-880 |
| Structural Group Name: | Clinozoisite, Epidote |
| Fleischer's Group Name: | epidote |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 1898 Million Years Ago |
| More Info: | Search Wikipedia: Hancockite (Wiki) Search Mindat: Hancockite Search Web Mineral DB: Hancockite |