| 释义 |
nordite Min.|ˈnɔːdaɪt|
[ad. Russ. nordit (V. I. Gerasimovsky 1941, in Dokladȳ Akad. Nauk SSSR XXXII. 496): see quot. 1941 and -ite1.]
A silicate of sodium, strontium, manganese, calcium, and lanthanides, found as light brown orthorhombic crystals.
1941V. I. Gerasimovsky in Compt. Rend. (Doklady) de l'Acad. des Sci. de l'URSS XXXII. 496 A more detailed study of the mineral has shown that it cannot be identified with any of the minerals already known, and therefore it was given a new name—nordite (because of its northern origin). 1958Chem. Abstr. LII. 12701 The predominance of La over Ce in nordite is an exception to the Oddo-Harkins rule. 1970Amer. Mineralogist LV. 1167 The structure of nordite is closely related to the structures of melilite and datolite-gadolinite, and can be considered as an unusual combination of both. |