“nefedyevite”的英文意思_释义_用法

单词

nefedyevite

释义

nefedyevite Min.|nɛfɛˈdjɛvaɪt|
Also † nefediewite, nefedievite.
[ad. Russ. nefed′evit (P. Puzyrevsky 1872, in Zapiski imperat. S.-Peterburgsk. mineral. Obshch. VII. 15, f. the name of V. V. Nefed′ev, 19th–cent. Russian mineralogist: see -ite¹.]
A white or pinkish aluminosilicate of magnesium and calcium belonging to the clay family and similar to montmorillonite.
1873Jrnl. Chem. Soc. XXVI. 1210 Nefediewite; a new mineral... This amorphous mineral, very much like lithomarge, occurs, together with fluorspar, in the limestone of Nertschinsk.1938Mineral. Abstr. VII. 104 Greenish-grey unctuous clay interbedded among Cretaceous limestones, the bulk of which consists of a fibrous crystalline aggregate..and in composition..corresponds to nefedievite.1961Doklady Earth Sci. CXXXV. 1296/1 In view of the great structural similarity between true montmorillonite and nefedyevite, doubling of the unit cell along the c axis can be expected.

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