Cancrinite

Cancrinite

Cancrinite is a complex carbonate and silicate of sodium, calcium and aluminium with the formula Na6Ca2 [(CO3,Al6Si6O24] ·2H2O. It is classed as a member of the feldspathoid group of minerals; the alkali feldspars that are poor in silica. Yellow, orange, pink, white or even blue, it has a vitreous or pearly lustre; a hardness of 5-6 and an uneven conchoidal fracture. It is unusual among the silicate minerals in that it will effervesce with hydrochloric acid due to the associated carbonate ions.

Found originally in 1839 in the Ural Mountains, it is named after Georg von Cancrin, a Russian minister of finance.


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  • Cancrinite — Cancrinite[1] Catégorie IX : silicates[2] …   Wikipédia en Français

  • Cancrinite — Can cri*nite, n. [Named after Count Cancrin, a minister of finance in Russia.] (Min.) A mineral occurring in hexagonal crystals, also massive, generally of a yellow color, containing silica, alumina, lime, soda, and carbon dioxide. [1913 Webster] …   The Collaborative International Dictionary of English

  • cancrinite — ● cancrinite nom féminin Aluminosilicate carbonaté de sodium et de calcium naturel, du système hexagonal …   Encyclopédie Universelle

  • cancrinite — kankrinitas statusas T sritis chemija apibrėžtis Mineralas. formulė Na₆Ca₂[(CO₃)₂|(AlSiO₄)₆] atitikmenys: angl. cancrinite rus. канкринит …   Chemijos terminų aiškinamasis žodynas

  • cancrinite — ▪ mineral       rare feldspathoid mineral, an aluminosilicate that contains sodium and calcium carbonate and occurs as an alteration product of nepheline and feldspar in nepheline syenite and related rocks. It also is found in metamorphic rocks… …   Universalium

  • cancrinite — noun Any of a family of feldspathoid minerals that are mixed carbonates and aluminosilicates of sodium and calcium …   Wiktionary

  • cancrinite — can·cri·nite …   English syllables

  • cancrinite — ˌnīt noun ( s) Etymology: German cancrinit, from Count Georg Cancrin died 1845 Russian statesman + German it ite : a mineral (Na2,Ca)4(AlSiO4)6CO3.nH2O consisting of an aluminosilicate and carbonate of sodium and calcium occurring in igneous… …   Useful english dictionary

  • Nepheline syenite — of the Intrusive Complex of Tanguá, State of Rio de Janeiro, Brasil (Motoki et al., 2011a) Nephelene syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. The rocks are mostly pale colored, grey or… …   Wikipedia

  • Cancrinit — (gelb), Nephelin (weiß) und Biotit (schwarz) aus Dennis Hill, Litchfield, Kennebec County, Maine, USA Chemische Formel Na6Ca2[(CO3)2|Al6Si6O24 …   Deutsch Wikipedia

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