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单词 murmanite
释义

murmaniten.

Brit. /ˈməːmənʌɪt/, U.S. /ˈmərməˌnaɪt/
Origin: A borrowing from Russian. Etymon: Russian murmanit.
Etymology: < Russian murmanit (A. E. Fersman 1923, in Doklady Ross. Akad. Nauk 63) < Murman , name of a shore on the north of the Kola peninsula in Russia + -it -ite suffix1.
Mineralogy.
A triclinic hydrated silicate of sodium, titanium, and niobium, Na2(Ti,Nb)2Si2O9·nH2O, usually occurring as aggregates of lilac to bright pink, platy crystals.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > silicates of zirconium and others
rosenbuschite1888
hiortdahlite1892
murmanite1924
1924 Mineral. Abstr. 2 263 Various new primary occurrences were found for..a new mineral murmanite from Alluaiva, Angvunsiok, and Sengischorr.
1951 Mineral. Abstr. 11 240 Recalculation of analyses of murmanite..suggests a formula (Na2,Ca)TiSiO5·xH2O analogous to that of sphene.
1968 I. Kostov Mineral. ii. v. 298 Murmanite and lomonosovite form a complete isomorphous series and are monoclinic like sphene and fersmanite.
1988 Amer. Mineralogist 73 934/1 The presence of a superstructure has not been reported previously for murmanite.
This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).
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n.1924
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