Vinogradovite

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.

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.
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.