Vinogradovite

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Vinogradovite

 

a mineral, hydrated silicate of titanium and sodium (Na5Ti4AlSi6O24·3H2O). Crystallizes in a mono-clinic system, usually forming colorless, thin needlelike and fibrous aggregates, and less frequently prismatic crystals. Its hardness on the mineralogical scale is 4; its density is 2,880 kg/m3. It is widely distributed in massifs of alkaline rock. It was discovered on the Kola Peninsula by E. I. Semenov in 1956 and is named in honor of A. P. Vinogradov.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Associated minerals are: microcline, aegirine, nepheline, magnesio-arfvedsonite, eudialyte, lorenzenite, lamprophyllite, catapleiite, titanite, vinogradovite, tundrite-(Ce), apatite, neptunite, tsepinite-Na, kuzmenkoite-Zn, korobitsynite.
Associated minerals are: albite, carbonate-fluorapatite, ancylite-(Ce), natrolite, aegirine, a glauconite-like mineral, nordstrandite, anatase, fluorite, galena, cerussite and vinogradovite.
Relationship to other species: It is chemically and structurally related to vinogradovite.
(2) Associated with microcline, aegirine, nepheline, magnesioarfvedsonite, eudialyte, lorenzenite, lamprophyllite, catapleiite, titanite, vinogradovite, tundrite-(Ce), apatite, neptunite, other labuntsovite group minerals and others.
Associated minerals are: natrolite, sodalite, aegirine, biotite, vinogradovite, titanite, eudialyte, calcite, barytocalcite, fluorapatite, fluorite, djerfisherite, and molybdenite.
Associated minerals are: analcime, gonnardite, vinogradovite, phillipsite, lavenite, seidozerite, fluorapatite, aegirine, potassic feldspar, nepheline, ilmenite, lorenzenite and sodalite.