nefedyeviten.

Brit.

/nɛˈfɛdjəvʌɪt/,

/nəˈfɛdjəvʌɪt/, U.S.

/nəˈfɛdjəˌvaɪt/

Forms: 1800s nefedieffite, 1800s nefediewit, 1800s nefediewite, 1900s– nefedevite, 1900s– nefed'evite, 1900s– nefedievite, 1900s– nefedjevite, 1900s– nefedyevite.

Origin: A borrowing from Russian. Etymon: Russian nefed′evit.

Etymology: < Russian nefed′evit (P. Puzyrevskij 1872, in Zapiski Imperatorskogo S.-Peterburgskogo Mineralogičeskogo Obščestva 2nd Ser. 7 15) < the name of V. V. Nefed′ev , 19th-cent. Russian mineralogist + -it -ite suffix¹. O.E.D. Suppl. (1976) gives the pronunciation as (nefedye·vəit) /nɛfɛˈdjɛvaɪt/.

Mineralogy.

A white or pinkish aluminosilicate of magnesium and calcium belonging to the montmorillonite group.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > smectites > other smectites

scoulerite1840

saponite1849

nefedyevite1873

sauconite1875

stevensite1889

rectorite1891

1873 Jrnl. Chem. Soc. 26 1210 Nefediewite; a new mineral... This amorphous mineral, very much like lithomarge, occurs, together with fluorspar, in the limestone of Nertschinsk.

1938 Mineral. Abstr. 7 104 Greenish-grey unctuous clay interbedded among Cretaceous limestones, the bulk of which consists of a fibrous crystalline aggregate..and in composition..corresponds to nefedievite.

1961 Doklady Earth Sci. 135 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.

1993 A. M. Clark Hey's Mineral Index (ed. 3) 488/1 Nefed'evite, aluminosilicate of Mg and Ca... A montmorillonitic clay.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	nefedyevite
释义	nefedyeviten. Brit. /nɛˈfɛdjəvʌɪt/, /nəˈfɛdjəvʌɪt/, U.S. /nəˈfɛdjəˌvaɪt/ Forms: 1800s nefedieffite, 1800s nefediewit, 1800s nefediewite, 1900s– nefedevite, 1900s– nefed'evite, 1900s– nefedievite, 1900s– nefedjevite, 1900s– nefedyevite. Origin: A borrowing from Russian. Etymon: Russian nefed′evit. Etymology: < Russian nefed′evit (P. Puzyrevskij 1872, in Zapiski Imperatorskogo S.-Peterburgskogo Mineralogičeskogo Obščestva 2nd Ser. 7 15) < the name of V. V. Nefed′ev , 19th-cent. Russian mineralogist + -it -ite suffix¹. O.E.D. Suppl. (1976) gives the pronunciation as (nefedye·vəit) /nɛfɛˈdjɛvaɪt/. Mineralogy. A white or pinkish aluminosilicate of magnesium and calcium belonging to the montmorillonite group. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > smectites > other smectites scoulerite1840 saponite1849 nefedyevite1873 sauconite1875 stevensite1889 rectorite1891 1873 Jrnl. Chem. Soc. 26 1210 Nefediewite; a new mineral... This amorphous mineral, very much like lithomarge, occurs, together with fluorspar, in the limestone of Nertschinsk. 1938 Mineral. Abstr. 7 104 Greenish-grey unctuous clay interbedded among Cretaceous limestones, the bulk of which consists of a fibrous crystalline aggregate..and in composition..corresponds to nefedievite. 1961 Doklady Earth Sci. 135 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. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 488/1 Nefed'evite, aluminosilicate of Mg and Ca... A montmorillonitic clay. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1873
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