| Name: | Tveitite-(Y) Ttt-Y |
| IMA Chemistry: | (Y,Na)6(Ca,Na,REE)12(Ca,Na)F42 |
| Chemistry Elements: | The mineral Tveitite-(Y) contains elements: Yttrium (Y) Sodium (Na) Calcium (Ca) (REE) Fluorine (F) |
| Country of Type Locality: | Norway |
| Year First Published: | 1975 |
| IMA Status: | Approved,Renamed |
| Status Notes: | Bergstøl S, Jensen B B, Neumann H (1977) Tveitite, a new calcium yttrium fluoride, Lithos 10, 81-87 Chemical formula changed from Ca_1-x_(Y,REE)_x_F_2+x_, where x ≈ 0.3 to (Y,Na)_6_(Ca,Na,REE)_12_(Ca,Na)F_42_: Bevan D J M, Strähle J, Greis O (1982) The crystal structure of tveitite, an ordered yttrofluorite mineral, Journal of Solid State Chemistry 44, 75-81 Name changed from tveitite: 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 |
| Structural Group Name: | |
| Fleischer's Group Name: | |
| Crystal Systems: | hexagonal |
| Oldest Known Age: | 2072 Million Years Ago |
| More Info: | Search Wikipedia: Tveitite-(Y) (Wiki) Search Mindat: Tveitite-(Y) Search Web Mineral DB: Tveitite-(Y) |